2016.9.19小程序

制作一个界面完成员工信息的添加、显示和查找

实现步骤：

1、制作界面

2、建立员工类，包含姓名、年龄、性别、电话4个私有属性，加上get和set方法作为访问器和修改器

3、在事件类中加入一个员工数组的属性，用于保存员工信息，加入一个number的属性，用于记录员工的人数。

4、当单击添加时，从四个文本框中得到信息，并封装成员工对象，然后将员工对象加入员工数组，人数加1。如果超出数组的长度，添加按钮变灰，阻止用户继续添加。

5、当单击显示时，弹出对话框，显示现有员工的信息。

6、在姓名文本框中输入用户姓名，单击查找按钮，将该用户的姓名、年龄、性别、电话，显示在文本框中。

1、员工类

 1 public class Staff {
 2     private String name ;
 3     private String age ;
 4     private String sex ;
 5     private String tel ;
 6     
 7     public String getName() {
 8         return name;
 9     }
10     public void setName(String name) {
11         this.name = name;
12     }
13     public String getAge() {
14         return age;
15     }
16     public void setAge(String age) {
17         this.age = age;
18     }
19     public String getSex() {
20         return sex;
21     }
22     public void setSex(String sex) {
23         this.sex = sex;
24     }
25     public String getTel() {
26         return tel;
27     }
28     public void setTel(String tel) {
29         this.tel = tel;
30     }
31     
32 }

2、主界面

  1 import java.awt.event.ActionEvent;
  2 import java.awt.event.ActionListener;
  3 
  4 import javax.swing.JFrame;
  5 import javax.swing.JOptionPane;
  6 
  7 import JLabelAndJButton.MyButton;
  8 import JLabelAndJButton.MyTxt;
  9 
 10 public class MainJFrame extends JFrame{
 11     private  MyTxt workName = new MyTxt("姓名", 60, 40, this);
 12     private MyTxt workAge = new MyTxt("年龄", 60, 100, this);
 13     private MyTxt workSex = new MyTxt("性别", 60, 160, this);
 14     private MyTxt workTel = new MyTxt("电话", 60, 220, this);
 15     
 16     private MyButton addButton = new MyButton("添加", 40, 280, this);
 17     
 18     static int num = 0;
 19     public static Staff [] workers = new Staff[2];
 20     
 21     public MainJFrame(){
 22         this.setTitle("我的窗体");
 23         this.setLayout(null);
 24          MyButton showButton = new MyButton("显示", 140, 280, this);
 25          MyButton findButton = new MyButton("查找", 240, 280, this);
 26          
 27         /**添加*/
 28         addButton.addActionListener(new ActionListener() {
 29             
 30             @Override
 31             public void actionPerformed(ActionEvent arg0) {
 32                 addnum ();
 33             }
 34         });
 35         /**显示*/
 36         showButton.addActionListener(new ActionListener() {
 37             @Override
 38             public void actionPerformed(ActionEvent e) {
 39                 shownum();
 40             }
 41         });
 42         /**查找*/
 43         findButton.addActionListener(new ActionListener() {
 44             @Override
 45             public void actionPerformed(ActionEvent e) {
 46                 findnum();
 47             }
 48         });
 49         
 50         this.setSize(400, 400);
 51         this.setVisible(true);
 52         this.setDefaultCloseOperation(3);
 53         this.setLocationRelativeTo(null);
 54     
 55     }
 56     /**添加方法*/
 57     public void addnum (){
 58         Staff worker = new Staff();
 59         
 60         worker.setName(workName.getText());
 61         worker.setAge(workAge.getText());
 62         worker.setSex(workSex.getText());
 63         worker.setTel(workTel.getText());
 64         workers[num] = worker;
 65         num++;
 66         if (num == workers.length){
 67             JOptionPane.showMessageDialog(null, "添加成功");
 68             addButton.setEnabled(false);
 69         }else {
 70             JOptionPane.showMessageDialog(null, "添加成功");
 71         }
 72         workName.setText("");
 73         workAge.setText("");
 74         workSex.setText("");
 75         workTel.setText("");
 76     }
 77     /**显示方法*/
 78     public void shownum (){
 79         String s = "姓名     "+"年龄     "+"性别     "+"电话
";
 80         for(int i = 0 ;i <num ;i++){
 81             s+= workers[i].getName()+ "         " + workers[i].getAge()+ "         " + 
 82                     workers[i].getSex()+ "      " + workers[i].getTel()+"
";
 83         }
 84         JOptionPane.showMessageDialog(null, s);
 85     }
 86     /**查找方法*/
 87     public void findnum(){
 88         int m = -1;
 89         
 90         for(int i = 0;i< num;i++){
 91             if((workName.getText()).equals(workers[i].getName())){
 92                     m=i;
 93             }
 94         }
 95         
 96         if( m ==-1){
 97             JOptionPane.showMessageDialog(null, "找不到此人");
 98         }else {
 99             workAge.setText(workers[m].getAge());
100             workSex.setText(workers[m].getSex());
101             workTel.setText(workers[m].getTel());
102         }
103 
104     }
105     
108     public static void main(String[] args) {
109         MainJFrame meun = new MainJFrame();
110 
111     }
112 
113 }