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目标编写一个四则远算100以内的,实现web界面
jsp编写界面要求有倒计时
倒计时代码
//20163558 信1605-3 赵朋硕 import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; /** * 倒计时 * */ public class TimeTest { private JFrame frame; private JLabel jl1; private JLabel jl2; private JLabel jl3; public static void main(String[] args) { new TimeTest().getTime(); } /* 倒计时的主要代码块 */ private void getTime() { long time =Integer.parseInt( JOptionPane.showInputDialog(null,"请输入答题时间(秒): ","答题时间",JOptionPane.PLAIN_MESSAGE)); // 自定义倒计时时间 long hour = 0; long minute = 0; long seconds = 0; while (time >= 0) { hour = time / 3600; minute = (time - hour * 3600) / 60; seconds = time - hour * 3600 - minute * 60; jl1.setText(hour + "时"); jl2.setText(minute + "分"); jl3.setText(seconds + "秒"); try { Thread.sleep(1000); } catch (InterruptedException e) { e.printStackTrace(); } time--; } } /* 构造 实现界面的开发 GUI */ public TimeTest() { frame = new JFrame("倒计时"); jl1 = new JLabel(); jl2 = new JLabel(); jl3 = new JLabel(); init(); } /* 组件的装配 */ private void init() { JPanel jp = new JPanel(); jp.add(jl1); jp.add(jl2); jp.add(jl3); frame.add(jp); frame.setVisible(true); frame.setLocation(300, 400); frame.setSize(300, 200); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } }
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