Java上机实验JFrame练习.docVIP

编写一个Frame窗体，大小为（200，200），上面放置三个标签、两个文本框、两个按钮，分别输入姓名和年龄，单击确定按钮时，在第三个标签上显示输入的姓名和年龄，单击取消按钮时，退出窗体。 import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.awt.event.WindowListener; public class myshiyan5 { public static void main(String arg[]) { new myframe(); } } class myframe extends Frame { public TextField t1,t2,t3; public Button b1,b2; public Label l1,l2,l3; public myframe() { super(用户信息); this.setBounds(280, 100, 300, 300); this.setBackground(Color.lightGray); this.setLayout(new GridLayout(4,1)); this.add(new p1()); this.add(new p2()); this.add(new p3()); this.add(new p4()); this.setVisible(true); this.addWindowListener( new WinClose()); } class WinClose extends WindowAdapter { public void windowClosing(WindowEvent e) { System.exit(0); } } class p1 extends Panel { public p1() { add(new Label(姓名)); t1=new TextField(10); add(t1); } } class p2 extends Panel { public p2() { add(new Label(年龄)); t2=new TextField(10); add(t2); } } class p3 extends Panel { public p3() { add(new Label(确认信息)); t3=new TextField(20); add(t3); } } class p4 extends Panel { public p4() { b1=new Button(OK); add(b1); b2=new Button(Cancel); add(b2); MyAction b1action=new MyAction(); MyAction b2action=new MyAction(); b1.addActionListener(b1action ); b2.addActionListener(b2action); } public class MyAction implements ActionListener { public void actionPerformed(ActionEvent ee) { if(ee.getSource()==b1) { String str=t1.getText(); String str2=t2.getText(); t3.setText(姓名：+str+ +年龄：+str2);//需要为事件进行的操作 } if(ee.getSource()==b2) { System.exit(0); } } } } }