一、题目要求
实验内容：
1. 已经提供的原始数据：班级成绩单文件
该文件为文本文件，存储某个班的所有学生某门课程的成绩。
例如：2012级计算机科学与技术8班-面向对象程序设计.txt
文件中每行存储一个学生的成绩，包括：学号、姓名和成绩，中间用英文逗号分隔。
说明：学号和姓名是字符串，成绩使用整数。
例如“2012级计算机科学与技术8班-面向对象程序设计.txt”文件中存放该班学生面向对象程序设计的考试成绩。内容为：
201230740801,赵一,68
201230740802,钱二,82
201230740803,孙三,58
201230740804,李四,62
201230740805,冯五,73
……
2. 实验要求：
(1) 程序使用图形用户界面。
(2) 文件操作与数据统计功能
<1> 打开上面给出的文本文件，将其中的成绩数据加载到内存。
<2> 把内存中的成绩数据另存为格式相同的另一个文本文件。
<3> 把内存中的成绩数据另存为一个二进制的对象文件。
<4> 打开已经保存的二进制的对象文件，将其中的成绩数据加载到内存。
<5> 统计分析已经加载到内存的班级的成绩，包括：最高分、最低分、平均分、各成绩等级的人数和百分比。
说明：该部分界面参见图1，黄色注释框标出的是完成本部分功能需要的界面。
(3) 图形统计功
<1> 对加载到内存的成绩单进行“柱形图”分析
<2> 对加载到内存的成绩单进行“饼图”分析
说明：该部分界面参见图2，图1红注释框标出的是完成本部分功能需要的按钮。图形使用Java的Graphics对象绘制，不得使用第三方类库。
(4) 查询排序功能
<1> 在“查询输入框”输入“学号、姓名或成绩”的全部或部分，成绩列表中只显示包括输入数据的成绩项目。
<2> 点击表格的“列标题”，可以自动按该列排序，2次点击可以切换“升序”和“降序”。
说明：图1黑色注释框指出的是查询界面的位置。提示：JTabel的RowSorter。
提交要求：
二、功能实现方法
1.图形用户界面
运用了Swing 的组件类（JFrame,JButton,JLable等等）去完成了这个功能，使用了可视化编程的方法去完成了,然后使用监听器去触发事件。
2.文件操作与数据统计功能
所有选择文件操作的都使用JFileChooser去完成 。
普通文件输入输出使用，Scanner , PrintWriter 实现。
而对象（二进制）文件即使用DataInputStream , DataOutputStream 来实现。
所有读入的数据存储在一个 ArrayList 里面。
3.图形统计功
使用Graphics 类制作圆，矩形，然后通过数据来调节矩形的高度，通过百分比分配圆的弧度来实现 柱状图 和 饼状图的分析功能 。
4.查询排序功能
使用JTable 来展现保存在ArrayList中的所有学生的数据。
利用 JTable 中的自动排序功能，还有滤器分别完成排序和查找功能。
学了4日的JAVA，写了2日的Java...使用可视化编程写的界面，主类代码坎长得一B，可读性甚差~~ 这样了！！
普通文件读写的编码上面还是有一点问题。我就默认了UTF-8算了。
下面是源程序的几个类
Test(主类)
package test; /** * * @hl_mark * */ import java.awt.Graphics; import java.io.*; import java.util.*; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.JFileChooser; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.RowFilter; import javax.swing.table.DefaultTableModel; import javax.swing.table.TableModel; import javax.swing.table.TableRowSorter; public class Test extends javax.swing.JFrame { int maxScore , minScore , tot ; double averageScore; int cnt[] = new int[5] ; double percent[] = new double[5] ; ArrayList studentList = new ArrayList(); private Object output; void updateDate(){ maxScore = 0 ; minScore = 100; averageScore = 0 ; for( int i = 0 ; i < 5 ; ++i ) { cnt[i] = 0 ; percent[i] = 0; } tot = studentList.size(); for( int i = 0 ; i < tot ; ++i ){ Student tmp = (Student)studentList.get(i); int score = tmp.get_score(); averageScore += (double)score ; if( score > maxScore ) maxScore = score ; if( score < minScore ) minScore = score ; if( score >= 0 && score < 60 ) cnt[4]++; else if( score >=60 && score < 70 ) cnt[3]++; else if( score >=70 && score < 80 ) cnt[2]++; else if( score >=80 && score < 90 ) cnt[1]++; else cnt[0]++; } averageScore /= tot; for( int i = 0 ; i < 5 ; ++i ) percent[i] = (double)cnt[i]/tot*100.0; } public Test() { initComponents(); } @SuppressWarnings("unchecked") // <editor-fold defaultstate="collapsed" desc="Generated Code"> private void initComponents() { jCheckBoxMenuItem1 = new javax.swing.JCheckBoxMenuItem(); jCheckBoxMenuItem2 = new javax.swing.JCheckBoxMenuItem(); jPanel2 = new javax.swing.JPanel(); jPanel3 = new javax.swing.JPanel(); jMenuBar2 = new javax.swing.JMenuBar(); jMenu2 = new javax.swing.JMenu(); jMenu3 = new javax.swing.JMenu(); jMenu4 = new javax.swing.JMenu(); jMenuBar3 = new javax.swing.JMenuBar(); jMenu5 = new javax.swing.JMenu(); jMenu6 = new javax.swing.JMenu(); jMenuBar4 = new javax.swing.JMenuBar(); jMenu7 = new javax.swing.JMenu(); jMenu8 = new javax.swing.JMenu(); jMenuBar5 = new javax.swing.JMenuBar(); jMenu9 = new javax.swing.JMenu(); jMenu10 = new javax.swing.JMenu(); jMenuBar6 = new javax.swing.JMenuBar(); jMenu11 = new javax.swing.JMenu(); jMenu12 = new javax.swing.JMenu(); jMenuBar7 = new javax.swing.JMenuBar(); jMenu13 = new javax.swing.JMenu(); jMenu14 = new javax.swing.JMenu(); jSeparator3 = new javax.swing.JSeparator(); jLayeredPane1 = new javax.swing.JLayeredPane(); jtfSearch = new javax.swing.JTextField(); jlbSearch = new javax.swing.JLabel(); jPanel1 = new javax.swing.JPanel(); jPanel5 = new javax.swing.JPanel(); jlbMaxS = new javax.swing.JLabel(); jlbMinS = new javax.swing.JLabel(); jlbAvgS = new javax.swing.JLabel(); jlbWell = new javax.swing.JLabel(); jlbGood = new javax.swing.JLabel(); jlbMiddle = new javax.swing.JLabel(); jlbPass = new javax.swing.JLabel(); jlbFail = new javax.swing.JLabel(); jButton1 = new javax.swing.JButton(); jButton2 = new javax.swing.JButton(); jLabel11 = new javax.swing.JLabel(); jLabel12 = new javax.swing.JLabel(); jLabel13 = new javax.swing.JLabel(); jLabel14 = new javax.swing.JLabel(); jLabel15 = new javax.swing.JLabel(); jTextField7 = new javax.swing.JTextField(); jTextField8 = new javax.swing.JTextField(); jTextField9 = new javax.swing.JTextField(); jTextField10 = new javax.swing.JTextField(); jTextField11 = new javax.swing.JTextField(); jLabel16 = new javax.swing.JLabel(); jLabel17 = new javax.swing.JLabel(); jLabel18 = new javax.swing.JLabel(); jLabel19 = new javax.swing.JLabel(); jLabel20 = new javax.swing.JLabel(); jLabel21 = new javax.swing.JLabel(); jLabel22 = new javax.swing.JLabel(); jLabel23 = new javax.swing.JLabel(); jLabel25 = new javax.swing.JLabel(); jLabel26 = new javax.swing.JLabel(); jLabelM = new javax.swing.JLabel(); jLabelm = new javax.swing.JLabel(); jLabela = new javax.swing.JLabel(); jLabels0 = new javax.swing.JLabel(); jLabels1 = new javax.swing.JLabel(); jLabels3 = new javax.swing.JLabel(); jLabels2 = new javax.swing.JLabel(); jLabels4 = new javax.swing.JLabel(); jLabelp0 = new javax.swing.JLabel(); jLabelp1 = new javax.swing.JLabel(); jLabelp2 = new javax.swing.JLabel(); jLabelp3 = new javax.swing.JLabel(); jLabelp4 = new javax.swing.JLabel(); jSeparator4 = new javax.swing.JSeparator(); jScrollPane2 = new javax.swing.JScrollPane(); jTable1 = new javax.swing.JTable(); jLabelfile = new javax.swing.JLabel(); jlbScore = new javax.swing.JLabel(); jlbAnalysis = new javax.swing.JLabel(); jbSearch = new javax.swing.JButton(); jMenuBar1 = new javax.swing.JMenuBar(); jMenu1 = new javax.swing.JMenu(); jmOpean0 = new javax.swing.JMenuItem(); jmSave0 = new javax.swing.JMenuItem(); jSeparator1 = new javax.swing.JPopupMenu.Separator(); jmOpean1 = new javax.swing.JMenuItem(); jmSave1 = new javax.swing.JMenuItem(); jSeparator2 = new javax.swing.JPopupMenu.Separator(); jmClear = new javax.swing.JMenuItem(); jCheckBoxMenuItem1.setSelected(true); jCheckBoxMenuItem1.setText("jCheckBoxMenuItem1"); jCheckBoxMenuItem2.setSelected(true); jCheckBoxMenuItem2.setText("jCheckBoxMenuItem2"); javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2); jPanel2.setLayout(jPanel2Layout); jPanel2Layout.setHorizontalGroup( jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGap(0, 100, Short.MAX_VALUE) ); jPanel2Layout.setVerticalGroup( jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGap(0, 22, Short.MAX_VALUE) ); javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3); jPanel3.setLayout(jPanel3Layout); jPanel3Layout.setHorizontalGroup( jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGap(0, 100, Short.MAX_VALUE) ); jPanel3Layout.setVerticalGroup( jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGap(0, 100, Short.MAX_VALUE) ); jMenu2.setText("File"); jMenuBar2.add(jMenu2); jMenu3.setText("Edit"); jMenuBar2.add(jMenu3); jMenu4.setText("jMenu4"); jMenu5.setText("File"); jMenuBar3.add(jMenu5); jMenu6.setText("Edit"); jMenuBar3.add(jMenu6); jMenu7.setText("File"); jMenuBar4.add(jMenu7); jMenu8.setText("Edit"); jMenuBar4.add(jMenu8); jMenu9.setText("File"); jMenuBar5.add(jMenu9); jMenu10.setText("Edit"); jMenuBar5.add(jMenu10); jMenu11.setText("File"); jMenuBar6.add(jMenu11); jMenu12.setText("Edit"); jMenuBar6.add(jMenu12); jMenu13.setText("File"); jMenuBar7.add(jMenu13); jMenu14.setText("Edit"); jMenuBar7.add(jMenu14); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); setTitle("ScoreAnalysisSystem"); jLayeredPane1.setBackground(new java.awt.Color(204, 204, 255)); jLayeredPane1.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED)); jtfSearch.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jtfSearchActionPerformed(evt); } }); jlbSearch.setText(" 输入学号或姓名或成绩可以自动查询，点击表头列头可以排序"); jlbSearch.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED)); jPanel1.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED)); jPanel5.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED)); jlbMaxS.setText("最高分"); jlbMinS.setText("最低分"); jlbAvgS.setText("平均分"); jlbWell.setText("优秀 （ 90 - 100 ）"); jlbGood.setText("良好 （ 80 - 89 ）"); jlbMiddle.setText("中等 （ 70 - 79 ）"); jlbPass.setText("及格 （ 60 - 69 ）"); jlbFail.setText("不及格（ 0 - 59 ）"); jButton1.setText("显示柱状分析图"); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jButton2.setText("显示饼状分析图"); jButton2.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton2ActionPerformed(evt); } }); jLabel11.setText("人,占"); jLabel12.setText("人,占"); jLabel13.setText("人,占"); jLabel14.setText("人,占"); jLabel15.setText("人,占"); jTextField7.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jTextField7ActionPerformed(evt); } }); jTextField8.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jTextField8ActionPerformed(evt); } }); jTextField9.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jTextField9ActionPerformed(evt); } }); jTextField10.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jTextField10ActionPerformed(evt); } }); jTextField11.setToolTipText(""); jTextField11.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jTextField11ActionPerformed(evt); } }); jLabel16.setText(" %"); jLabel17.setText(" %"); jLabel18.setText(" %"); jLabel19.setText(" %"); jLabel20.setText(" %"); jLabel21.setText(" %"); jLabel22.setText(" %"); jLabel23.setText(" %"); jLabel25.setText(" %"); jLabel26.setText(" %"); jLabelM.setBackground(new java.awt.Color(255, 255, 255)); jLabelM.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0))); jLabelm.setBackground(new java.awt.Color(255, 255, 255)); jLabelm.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0))); jLabela.setBackground(new java.awt.Color(255, 255, 255)); jLabela.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0))); jLabels0.setBackground(new java.awt.Color(255, 255, 255)); jLabels0.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0))); jLabels1.setBackground(new java.awt.Color(255, 255, 255)); jLabels1.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0))); jLabels3.setBackground(new java.awt.Color(255, 255, 255)); jLabels3.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0))); jLabels2.setBackground(new java.awt.Color(255, 255, 255)); jLabels2.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0))); jLabels4.setBackground(new java.awt.Color(255, 255, 255)); jLabels4.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0))); jLabelp0.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0))); jLabelp1.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0))); jLabelp2.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0))); jLabelp3.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0))); jLabelp4.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0))); javax.swing.GroupLayout jPanel5Layout = new javax.swing.GroupLayout(jPanel5); jPanel5.setLayout(jPanel5Layout); jPanel5Layout.setHorizontalGroup( jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(jPanel5Layout.createSequentialGroup() .addContainerGap() .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(jPanel5Layout.createSequentialGroup() .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false) .addComponent(jlbMinS, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(jlbMaxS, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(jlbGood, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(jlbPass, javax.swing.GroupLayout.DEFAULT_SIZE, 122, Short.MAX_VALUE) .addComponent(jlbMiddle, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(jlbFail) .addComponent(jlbAvgS, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jLabelm, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabelM, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabela, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE))) .addGroup(jPanel5Layout.createSequentialGroup() .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING) .addGroup(jPanel5Layout.createSequentialGroup() .addComponent(jlbWell, javax.swing.GroupLayout.PREFERRED_SIZE, 122, javax.swing.GroupLayout.PREFERRED_SIZE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING) .addComponent(jLabels0, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabels1, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabels3, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE)) .addComponent(jLabels4, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabels2, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false) .addComponent(jLabel14, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(jLabel15, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(jLabel13, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(jLabel12, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(jLabel11, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, 37, javax.swing.GroupLayout.PREFERRED_SIZE)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false) .addComponent(jLabelp1, javax.swing.GroupLayout.DEFAULT_SIZE, 37, Short.MAX_VALUE) .addComponent(jLabelp3, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(jLabelp4, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(jLabelp2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(jLabelp0, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)) .addGap(18, 18, 18) .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jLabel23, javax.swing.GroupLayout.PREFERRED_SIZE, 24, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel25, javax.swing.GroupLayout.PREFERRED_SIZE, 24, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel26, javax.swing.GroupLayout.PREFERRED_SIZE, 24, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel22, javax.swing.GroupLayout.PREFERRED_SIZE, 24, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel21, javax.swing.GroupLayout.PREFERRED_SIZE, 24, javax.swing.GroupLayout.PREFERRED_SIZE))) 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.addComponent(jLabel17, javax.swing.GroupLayout.PREFERRED_SIZE, 22, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGroup(jPanel5Layout.createSequentialGroup() .addComponent(jTextField9, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(jLabel18, javax.swing.GroupLayout.PREFERRED_SIZE, 22, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGroup(jPanel5Layout.createSequentialGroup() .addComponent(jTextField10, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(jLabel19, javax.swing.GroupLayout.PREFERRED_SIZE, 22, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGroup(jPanel5Layout.createSequentialGroup() .addComponent(jTextField11, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(jLabel20, javax.swing.GroupLayout.PREFERRED_SIZE, 22, javax.swing.GroupLayout.PREFERRED_SIZE))))) .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)) ); jPanel5Layout.setVerticalGroup( jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(jPanel5Layout.createSequentialGroup() .addGap(32, 32, 32) .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING) .addComponent(jlbMaxS, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabelM, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGap(18, 18, 18) .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jLabelm, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jlbMinS, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGap(18, 18, 18) .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jlbAvgS, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabela, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGap(39, 39, 39) .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING) .addGroup(jPanel5Layout.createSequentialGroup() .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(jPanel5Layout.createSequentialGroup() .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false) .addComponent(jLabels0, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE) .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jLabel11, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jTextField7, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel16, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)) .addComponent(jlbWell, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(jLabelp0, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jLabelp1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE) .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jlbGood) .addComponent(jLabel12, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jTextField8, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel17, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabels1, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel26, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)))) .addComponent(jLabel22, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING) .addComponent(jLabels2, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE) .addGroup(javax.swing.GroupLayout.Alignment.LEADING, jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jLabel21, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel14, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabelp2, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE))) .addComponent(jlbMiddle, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGap(11, 11, 11)) .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jTextField9, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel18, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE))) .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false) .addComponent(jlbPass, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jLabel25, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel13, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabelp3, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)) .addComponent(jLabels3, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(jPanel5Layout.createSequentialGroup() .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jTextField10, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel19, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel15, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jTextField11, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel20, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE))) .addGroup(jPanel5Layout.createSequentialGroup() .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false) .addGroup(jPanel5Layout.createSequentialGroup() .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jlbFail, javax.swing.GroupLayout.DEFAULT_SIZE, 24, Short.MAX_VALUE) .addComponent(jLabel23, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGap(31, 31, 31)) .addGroup(jPanel5Layout.createSequentialGroup() .addComponent(jLabels4, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addGap(32, 32, 32)) .addGroup(jPanel5Layout.createSequentialGroup() .addComponent(jLabelp4, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addGap(32, 32, 32))) .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jButton1) .addComponent(jButton2)))) .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)) ); jTable1.setModel(new javax.swing.table.DefaultTableModel( new Object [][] { {null, null, null}, {null, null, null}, {null, null, null}, {null, null, null} }, new String [] { "学号", "姓名", "成绩" } ) { Class[] types = new Class [] { java.lang.String.class, java.lang.String.class, java.lang.Integer.class }; public Class getColumnClass(int columnIndex) { return types [columnIndex]; } }); jScrollPane2.setViewportView(jTable1); if (jTable1.getColumnModel().getColumnCount() > 0) { jTable1.getColumnModel().getColumn(0).setHeaderValue("学号"); jTable1.getColumnModel().getColumn(1).setHeaderValue("姓名"); jTable1.getColumnModel().getColumn(2).setHeaderValue("成绩"); } jLabelfile.setText(" "); jLabelfile.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED)); javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1); jPanel1.setLayout(jPanel1Layout); jPanel1Layout.setHorizontalGroup( jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(jPanel1Layout.createSequentialGroup() .addGap(0, 0, 0) .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jLabelfile, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addGroup(jPanel1Layout.createSequentialGroup() .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 397, javax.swing.GroupLayout.PREFERRED_SIZE) .addGap(18, 18, 18) .addComponent(jPanel5, javax.swing.GroupLayout.PREFERRED_SIZE, 397, Short.MAX_VALUE))) .addContainerGap()) .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(jPanel1Layout.createSequentialGroup() .addGap(0, 0, Short.MAX_VALUE) .addComponent(jSeparator4, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE) .addGap(0, 0, Short.MAX_VALUE))) ); jPanel1Layout.setVerticalGroup( jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(jPanel1Layout.createSequentialGroup() .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false) .addComponent(jPanel5, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(jScrollPane2)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(jLabelfile, javax.swing.GroupLayout.PREFERRED_SIZE, 37, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(jPanel1Layout.createSequentialGroup() .addGap(0, 235, Short.MAX_VALUE) .addComponent(jSeparator4, javax.swing.GroupLayout.PREFERRED_SIZE, 10, javax.swing.GroupLayout.PREFERRED_SIZE) .addGap(0, 236, Short.MAX_VALUE))) ); jlbScore.setFont(new java.awt.Font("宋体", 1, 14)); // NOI18N jlbScore.setText(" 成绩单"); jlbAnalysis.setFont(new java.awt.Font("宋体", 1, 14)); // NOI18N jlbAnalysis.setText(" 数据分析"); jbSearch.setText("查找"); jbSearch.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jbSearchActionPerformed(evt); } }); javax.swing.GroupLayout jLayeredPane1Layout = new javax.swing.GroupLayout(jLayeredPane1); jLayeredPane1.setLayout(jLayeredPane1Layout); jLayeredPane1Layout.setHorizontalGroup( jLayeredPane1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addGroup(jLayeredPane1Layout.createSequentialGroup() .addComponent(jtfSearch, javax.swing.GroupLayout.PREFERRED_SIZE, 270, javax.swing.GroupLayout.PREFERRED_SIZE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(jbSearch, javax.swing.GroupLayout.PREFERRED_SIZE, 61, javax.swing.GroupLayout.PREFERRED_SIZE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(jlbSearch, javax.swing.GroupLayout.PREFERRED_SIZE, 477, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGroup(jLayeredPane1Layout.createSequentialGroup() .addComponent(jlbScore, javax.swing.GroupLayout.PREFERRED_SIZE, 389, javax.swing.GroupLayout.PREFERRED_SIZE) .addGap(155, 155, 155) .addComponent(jlbAnalysis, javax.swing.GroupLayout.PREFERRED_SIZE, 372, javax.swing.GroupLayout.PREFERRED_SIZE)) ); jLayeredPane1Layout.setVerticalGroup( jLayeredPane1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(jLayeredPane1Layout.createSequentialGroup() .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addGroup(jLayeredPane1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jtfSearch, javax.swing.GroupLayout.PREFERRED_SIZE, 25, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jbSearch) .addComponent(jlbSearch)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(jLayeredPane1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jlbScore, javax.swing.GroupLayout.PREFERRED_SIZE, 32, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jlbAnalysis, javax.swing.GroupLayout.PREFERRED_SIZE, 32, javax.swing.GroupLayout.PREFERRED_SIZE)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) ); jLayeredPane1.setLayer(jtfSearch, javax.swing.JLayeredPane.DEFAULT_LAYER); jLayeredPane1.setLayer(jlbSearch, javax.swing.JLayeredPane.DEFAULT_LAYER); jLayeredPane1.setLayer(jPanel1, javax.swing.JLayeredPane.DEFAULT_LAYER); jLayeredPane1.setLayer(jlbScore, javax.swing.JLayeredPane.DEFAULT_LAYER); jLayeredPane1.setLayer(jlbAnalysis, javax.swing.JLayeredPane.DEFAULT_LAYER); jLayeredPane1.setLayer(jbSearch, javax.swing.JLayeredPane.DEFAULT_LAYER); jMenu1.setText("文件"); jmOpean0.setText("打开文本文件成绩"); jmOpean0.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jmOpean0ActionPerformed(evt); } }); jMenu1.add(jmOpean0); jmSave0.setText("另存为文本文件成绩"); jmSave0.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jmSave0ActionPerformed(evt); } }); jMenu1.add(jmSave0); jMenu1.add(jSeparator1); jmOpean1.setText("打开对象文件成绩"); jmOpean1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jmOpean1ActionPerformed(evt); } }); jMenu1.add(jmOpean1); jmSave1.setText("另存为对象文件成绩"); jmSave1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jmSave1ActionPerformed(evt); } }); jMenu1.add(jmSave1); jMenu1.add(jSeparator2); jmClear.setText("清除数据"); jmClear.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jmClearActionPerformed(evt); } }); jMenu1.add(jmClear); jMenuBar1.add(jMenu1); setJMenuBar(jMenuBar1); javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); getContentPane().setLayout(layout); layout.setHorizontalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addComponent(jLayeredPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 828, javax.swing.GroupLayout.PREFERRED_SIZE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(jSeparator3, javax.swing.GroupLayout.DEFAULT_SIZE, 1, Short.MAX_VALUE)) ); layout.setVerticalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jSeparator3, javax.swing.GroupLayout.PREFERRED_SIZE, 10, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLayeredPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) ); pack(); }// </editor-fold> private void jmOpean1ActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: studentList.clear(); // 清空线性表 JFileChooser filechooser = new JFileChooser(); if( filechooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION ){ File file = filechooser.getSelectedFile(); try{ DataInputStream input = new DataInputStream ( new FileInputStream(file) ); while(true){ String id = "" ;String name = "" ;int score=0; String s = input.readUTF(); // System.out.println(s); if( s.length() == 0 ) continue; StringBuilder sb = new StringBuilder(); sb.append(s); int cnt = 0 ; for( int i = 0 ; i < sb.length(); ++i ){ char op = sb.charAt(i); if( op == ',' ) { cnt++; continue ; } if( cnt == 0 ) id += op; else if( cnt == 1 ) name += op; else { score = score * 10 + (op-'0'); } } studentList.add( new Student(id,name,score) ); } } catch( EOFException ex){ System.out.println("All data read"); } catch (IOException ex) { ex.printStackTrace(); } updateDate(); //更新最高最低分，百分比 jLabelM.setText(maxScore+""); jLabelm.setText(minScore+""); jLabela.setText(averageScore+""); jLabels0.setText(cnt[0]+""); jLabels1.setText(cnt[1]+""); jLabels2.setText(cnt[2]+""); jLabels3.setText(cnt[3]+""); jLabels4.setText(cnt[4]+""); jLabelp0.setText(String.format("%.2f",percent[0])); jLabelp1.setText(String.format("%.2f",percent[1])); jLabelp2.setText(String.format("%.2f",percent[2])); jLabelp3.setText(String.format("%.2f",percent[3])); jLabelp4.setText(String.format("%.2f",percent[4])); jLabelfile.setText(file.getAbsolutePath()+"，共"+ tot + "人" ); DefaultTableModel dtm = (DefaultTableModel) jTable1.getModel(); TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(dtm); this.jTable1.setRowSorter(sorter); while( dtm.getRowCount() != 0 ) { //清空jtable dtm.removeRow(0); } for( int i = 0 ; i < studentList.size() ; ++i ) { //studentList写入jTable Student tmp = (Student)studentList.get(i); Vector v = new Vector(); v.add(tmp.get_id());v.add(tmp.get_name());v.add(tmp.get_score()); dtm.addRow(v); } } } private void jmClearActionPerformed(java.awt.event.ActionEvent evt) { DefaultTableModel dtm = (DefaultTableModel) jTable1.getModel(); while( dtm.getRowCount() != 0 ) { //清空jtable dtm.removeRow(0); } jLabelM.setText(null); jLabelm.setText(null); jLabela.setText(null); jLabels0.setText(null); jLabels1.setText(null); jLabels2.setText(null); jLabels3.setText(null); jLabels4.setText(null); jLabelp0.setText(null); jLabelp1.setText(null); jLabelp2.setText(null); jLabelp3.setText(null); jLabelp4.setText(null); jLabelfile.setText(null); } private void jtfSearchActionPerformed(java.awt.event.ActionEvent evt) { String text = jtfSearch.getText(); TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(jTable1.getModel()); this.jTable1.setRowSorter(sorter); if( text.trim().length() == 0 ) sorter.setRowFilter(null); else sorter.setRowFilter(RowFilter.regexFilter(text)); } private void jmOpean0ActionPerformed(java.awt.event.ActionEvent evt) { studentList.clear(); // 清空线性表 JFileChooser filechooser = new JFileChooser(); if( filechooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION ){ File file = filechooser.getSelectedFile(); Scanner input = null; try { input = new Scanner(file,"UTF-8"); } catch (FileNotFoundException ex) { Logger.getLogger(Test.class.getName()).log(Level.SEVERE, null, ex); } while( input.hasNext() ) { String id = "" ;String name = "" ;int score=0; String s = input.nextLine(); if( s.length() == 0 ) continue; StringBuilder sb = new StringBuilder(); sb.append(s); int cnt = 0 ; for( int i = 0 ; i < sb.length(); ++i ){ char op = sb.charAt(i); if( op == ',' ) { cnt++; continue ; } if( cnt == 0 ) id += op; else if( cnt == 1 ) name += op; else { score = score * 10 + (op-'0'); } } studentList.add( new Student(id,name,score) ); } updateDate(); //更新最高最低分，百分比 jLabelM.setText(maxScore+""); jLabelm.setText(minScore+""); jLabela.setText(averageScore+""); jLabels0.setText(cnt[0]+""); jLabels1.setText(cnt[1]+""); jLabels2.setText(cnt[2]+""); jLabels3.setText(cnt[3]+""); jLabels4.setText(cnt[4]+""); jLabelp0.setText(String.format("%.2f",percent[0])); jLabelp1.setText(String.format("%.2f",percent[1])); jLabelp2.setText(String.format("%.2f",percent[2])); jLabelp3.setText(String.format("%.2f",percent[3])); jLabelp4.setText(String.format("%.2f",percent[4])); jLabelfile.setText(file.getAbsolutePath()+"，共"+ tot + "人" ); // jTextField12 = new JTextField(""+maxcost); input.close(); DefaultTableModel dtm = (DefaultTableModel) jTable1.getModel(); TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(dtm); this.jTable1.setRowSorter(sorter); while( dtm.getRowCount() != 0 ) { //清空jtable dtm.removeRow(0); } for( int i = 0 ; i < studentList.size() ; ++i ) { //studentList写入jTable Student tmp = (Student)studentList.get(i); Vector v = new Vector(); v.add(tmp.get_id()); v.add(tmp.get_name()); v.add(tmp.get_score()); dtm.addRow(v); } } } private void jTextField11ActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: } private void jTextField10ActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: } private void jTextField9ActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: } private void jTextField8ActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: } private void jTextField7ActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: } private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: NewJFrame3 frame = new NewJFrame3(cnt); frame.setVisible(true); frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); frame.setSize(400, 400); frame.setLocationRelativeTo(null); } private void jmSave0ActionPerformed(java.awt.event.ActionEvent evt) { JFileChooser filechooser = new JFileChooser(); if( filechooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION ){ File file = filechooser.getSelectedFile(); try { PrintWriter output = new PrintWriter(file); for( int i = 0 ; i < studentList.size() ; ++i ) { Student tmp = (Student)studentList.get(i); output.println(tmp.get_id()+","+tmp.get_name()+","+tmp.get_score()+" "); } output.close(); } catch (FileNotFoundException ex) { Logger.getLogger(Test.class.getName()).log(Level.SEVERE, null, ex); } } } private void jbSearchActionPerformed(java.awt.event.ActionEvent evt) { String text = jtfSearch.getText(); TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(jTable1.getModel()); this.jTable1.setRowSorter(sorter); if( text.trim().length() == 0 ) sorter.setRowFilter(null); else sorter.setRowFilter(RowFilter.regexFilter(text)); } private void jmSave1ActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: JFileChooser filechooser = new JFileChooser(); if( filechooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION ){ File file = filechooser.getSelectedFile(); try { DataOutputStream output = new DataOutputStream ( new FileOutputStream(file)); for( int i = 0 ; i < studentList.size() ; ++i ) { Student tmp = (Student)studentList.get(i); output.writeUTF(tmp.get_String()); } output.close(); } catch (FileNotFoundException ex) { Logger.getLogger(Test.class.getName()).log(Level.SEVERE, null, ex); } catch (IOException ex) { Logger.getLogger(Test.class.getName()).log(Level.SEVERE, null, ex); } } } private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: NewJFrame5 frame = new NewJFrame5(percent); frame.setVisible(true); frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); frame.setSize(400, 400); frame.setLocationRelativeTo(null); } /** * @param args the command line arguments */ public static void main(String args[]) { /* Set the Nimbus look and feel */ //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) "> /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel. * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html */ try { for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) { if ("Nimbus".equals(info.getName())) { javax.swing.UIManager.setLookAndFeel(info.getClassName()); break; } } } catch (ClassNotFoundException ex) { java.util.logging.Logger.getLogger(Test.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (InstantiationException ex) { java.util.logging.Logger.getLogger(Test.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { java.util.logging.Logger.getLogger(Test.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (javax.swing.UnsupportedLookAndFeelException ex) { java.util.logging.Logger.getLogger(Test.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } //</editor-fold> //</editor-fold> /* Create and display the form */ java.awt.EventQueue.invokeLater(new Runnable() { public void run() { new Test().setVisible(true); } }); } // Variables declaration - do not modify private javax.swing.JButton jButton1; private javax.swing.JButton jButton2; private javax.swing.JCheckBoxMenuItem jCheckBoxMenuItem1; private javax.swing.JCheckBoxMenuItem jCheckBoxMenuItem2; private javax.swing.JLabel jLabel11; private javax.swing.JLabel jLabel12; private javax.swing.JLabel jLabel13; private javax.swing.JLabel jLabel14; private javax.swing.JLabel jLabel15; private javax.swing.JLabel jLabel16; private javax.swing.JLabel jLabel17; private javax.swing.JLabel jLabel18; private javax.swing.JLabel jLabel19; private javax.swing.JLabel jLabel20; private javax.swing.JLabel jLabel21; private javax.swing.JLabel jLabel22; private javax.swing.JLabel jLabel23; private javax.swing.JLabel jLabel25; private javax.swing.JLabel jLabel26; private javax.swing.JLabel jLabelM; private javax.swing.JLabel jLabela; private javax.swing.JLabel jLabelfile; private javax.swing.JLabel jLabelm; private javax.swing.JLabel jLabelp0; private javax.swing.JLabel jLabelp1; private javax.swing.JLabel jLabelp2; private javax.swing.JLabel jLabelp3; private javax.swing.JLabel jLabelp4; private javax.swing.JLabel jLabels0; private javax.swing.JLabel jLabels1; private javax.swing.JLabel jLabels2; private javax.swing.JLabel jLabels3; private javax.swing.JLabel jLabels4; private javax.swing.JLayeredPane jLayeredPane1; private javax.swing.JMenu jMenu1; private javax.swing.JMenu jMenu10; private javax.swing.JMenu jMenu11; private javax.swing.JMenu jMenu12; private javax.swing.JMenu jMenu13; private javax.swing.JMenu jMenu14; private javax.swing.JMenu jMenu2; private javax.swing.JMenu jMenu3; private javax.swing.JMenu jMenu4; private javax.swing.JMenu jMenu5; private javax.swing.JMenu jMenu6; private javax.swing.JMenu jMenu7; private javax.swing.JMenu jMenu8; private javax.swing.JMenu jMenu9; private javax.swing.JMenuBar jMenuBar1; private javax.swing.JMenuBar jMenuBar2; private javax.swing.JMenuBar jMenuBar3; private javax.swing.JMenuBar jMenuBar4; private javax.swing.JMenuBar jMenuBar5; private javax.swing.JMenuBar jMenuBar6; private javax.swing.JMenuBar jMenuBar7; private javax.swing.JPanel jPanel1; private javax.swing.JPanel jPanel2; private javax.swing.JPanel jPanel3; private javax.swing.JPanel jPanel5; private javax.swing.JScrollPane jScrollPane2; private javax.swing.JPopupMenu.Separator jSeparator1; private javax.swing.JPopupMenu.Separator jSeparator2; private javax.swing.JSeparator jSeparator3; private javax.swing.JSeparator jSeparator4; private javax.swing.JTable jTable1; private javax.swing.JTextField jTextField10; private javax.swing.JTextField jTextField11; private javax.swing.JTextField jTextField7; private javax.swing.JTextField jTextField8; private javax.swing.JTextField jTextField9; private javax.swing.JButton jbSearch; private javax.swing.JLabel jlbAnalysis; private javax.swing.JLabel jlbAvgS; private javax.swing.JLabel jlbFail; private javax.swing.JLabel jlbGood; private javax.swing.JLabel jlbMaxS; private javax.swing.JLabel jlbMiddle; private javax.swing.JLabel jlbMinS; private javax.swing.JLabel jlbPass; private javax.swing.JLabel jlbScore; private javax.swing.JLabel jlbSearch; private javax.swing.JLabel jlbWell; private javax.swing.JMenuItem jmClear; private javax.swing.JMenuItem jmOpean0; private javax.swing.JMenuItem jmOpean1; private javax.swing.JMenuItem jmSave0; private javax.swing.JMenuItem jmSave1; private javax.swing.JTextField jtfSearch; // End of variables declaration }
NewJFrame3（柱状图，传参int[] ）
package scoreaynalysissystem; import javax.swing.*; import java.awt.*; public class NewJFrame3 extends JFrame{ public NewJFrame3(int[] data){ add(new NewJFrame4(data)); } public class NewJFrame4 extends JPanel{ private boolean filled = false; private int[] data; public NewJFrame4() { } public NewJFrame4(int[] data) { this.data=data; } public NewJFrame4(boolean filled){ this.filled=filled; } protected void paintComponent(Graphics g){ super.paintComponent(g); int width = getWidth(); int height = getHeight(); int gap=20,aa=(int)(height*0.8/11),a2=(int)((0.8*width-6*gap)/5); g.drawRect((int)(0.1*width), (int)(0.1*height), (int)(0.8*width), (int)(0.8*height)); g.drawString(String.valueOf(data[0]),(int)(0.1*width+gap)+a2/2-1,(int)(height-0.1*height-aa*data[0])-5); g.drawString("优秀",(int)(0.1*width+gap)+a2/2-10,(int)(height-0.1*height+12)); g.setColor(Color.black); g.setColor(Color.green); g.fillRect((int)(0.1*width+gap), (int)(height-0.1*height-aa*data[0]), a2, aa*data[0]); g.setColor(Color.black); g.drawString(String.valueOf(data[1]),(int)(0.1*width+2*gap+a2)+a2/2-1,(int)(height-0.1*height-aa*data[1])-5 ); g.drawString("良好",(int)(0.1*width+2*gap+a2)+a2/2-10,(int)(height-0.1*height+12)); g.setColor(Color.black); g.setColor(Color.blue); g.fillRect((int)(0.1*width+2*gap+a2), (int)(height-0.1*height-aa*data[1]),a2, aa*data[1]); g.setColor(Color.black); g.drawString(String.valueOf(data[2]),(int)(0.1*width+3*gap+2*a2)+a2/2-1, (int)(height-0.1*height-aa*data[2])-5); g.drawString("中等",(int)(0.1*width+3*gap+2*a2)+a2/2-10,(int)(height-0.1*height+12)); g.setColor(Color.black); g.setColor(Color.orange); g.fillRect((int)(0.1*width+3*gap+2*a2), (int)(height-0.1*height-aa*data[2]),a2, aa*data[2]); g.setColor(Color.black); g.drawString(String.valueOf(data[3]),(int)(0.1*width+4*gap+3*a2)+a2/2-1, (int)(height-0.1*height-aa*data[3])-5); g.drawString("及格",(int)(0.1*width+4*gap+3*a2)+a2/2-10,(int)(height-0.1*height+12)); g.setColor(Color.black); g.setColor(Color.yellow); g.fillRect((int)(0.1*width+4*gap+3*a2), (int)(height-0.1*height-aa*data[3]),a2, aa*data[3]); g.setColor(Color.black); g.drawString(String.valueOf(data[4]),(int)(0.1*width+5*gap+4*a2)+a2/2-1, (int)(height-0.1*height-aa*data[4])-5); g.drawString("不及格",(int)(0.1*width+5*gap+4*a2)+a2/2-15,(int)(height-0.1*height+12)); g.setColor(Color.black); g.setColor(Color.red); g.fillRect((int)(0.1*width+5*gap+4*a2), (int)(height-0.1*height-aa*data[4]),a2, aa*data[4]); } public boolean isFilled() { return filled; } public void setFilled(boolean filled) { this.filled = filled; repaint(); } public Dimension getPreferredSize(){ return new Dimension(80,80); } } }
NewJFrame5(饼状图，传参 double[] )
package scoreaynalysissystem; import java.awt.Color; import java.awt.Dimension; import java.awt.*; import javax.swing.*; public class NewJFrame5 extends JFrame{ public NewJFrame5(double[] data){ add(new NewJFrame6(data)); } public class NewJFrame6 extends JPanel{ private boolean filled = false; private double[] data; public NewJFrame6() { } public NewJFrame6(double[] data) { this.data=data; } public NewJFrame6(boolean filled){ this.filled=filled; } protected void paintComponent(Graphics g){ super.paintComponent(g); int width = getWidth()/2; int height = getHeight()/2; int radius = (int)(Math.min(getWidth(), getHeight())*0.4); int d=2*radius; int x = width-radius; int y = height-radius; String[] str = {String.format("%5.2f", data[0]),String.format("%5.2f", data[1]),String.format("%5.2f", data[2]),String.format("%5.2f", data[3]), String.format("%5.2f", data[4])}; int[] a2={(int)(360*data[0]/100),(int)(360*data[1]/100),(int)(360*data[2]/100),(int)(360*data[3]/100),(int)(360*data[4]/100)}; g.setColor(Color.green); g.fillRect(5, 20, 10, 10); g.fillArc(x, y,d,d, 0, a2[0]); g.setColor(Color.blue); g.fillRect(5, 40, 10, 10); g.fillArc(x, y,d,d, a2[0], a2[1]); g.setColor(Color.orange); g.fillRect(5, 60, 10, 10); g.fillArc(x, y,d,d, a2[0]+a2[1], a2[2]); g.setColor(Color.yellow); g.fillRect(5, 80, 10, 10); g.fillArc(x, y,d,d, a2[0]+a2[1]+a2[2],a2[3]); g.setColor(Color.red); g.fillRect(5, 100, 10, 10); g.fillArc(x, y,d,d,a2[0]+a2[1]+a2[2]+a2[3] ,a2[4]); g.setColor(Color.black); g.drawString("优秀"+str[0]+"%", 20, 30); g.drawString("良好"+str[1]+"%", 20, 50); g.drawString("中等"+str[2]+"%", 20, 70); g.drawString("良好"+str[3]+"%", 20, 90); g.drawString("不及格"+str[4]+"%", 20, 110); } public boolean isFilled() { return filled; } public void setFilled(boolean filled) { this.filled = filled; repaint(); } public Dimension getPreferredSize(){ return new Dimension(80,80); } } }
Student (信息类型类)
package scoreaynalysissystem; public class Student { private String id ; private String name; private int score ; Student (){ } Student ( String id ,String name , int score ) { this.id = id ; this.name = name ; this.score = score ; } public void set_id( String id ){ this.id = id ; } public void set_name( String name ){ this.name = name ; } public void set_score( int score ){ this.score = score ; } public String get_id(){ return this.id; } public String get_name(){ return this.name ; } public int get_score(){ return this.score; } public void show (){ System.out.println( this.id + "," + this.name + "," + this.score ); } public String get_String (){ return this.id + "," + this.name + "," + this.score ; } public boolean eaquals( Student x ){ return ( this.score == x.score ); } public int Compareable( Student x ){ if( this.score == x.score ) return 0 ; else if( this.score > x.score ) return 1 ; else return -1 ; } }