texevent.java

GUI事件处理例子

import java.awt.*;
import java.awt.event.*;

public class TexEvent extends Frame implements TextListener{

	static TexEvent frm = new TexEvent();
	static TextField txt1, txt2;

	public static void main(String args[]) {
		
		frm.setTitle("TextEvent");
		frm.setSize(240, 160);
		frm.setLayout(new FlowLayout());
		txt1 = new TextField(20);
		txt2 = new TextField(20);
		txt1.addTextListener(frm);
		frm.add(txt1);
		txt2.setEditable(false);
		frm.add(txt1);
		frm.add(txt2);
		frm.setVisible(true);
	}

	public void textValueChanged(TextEvent e){
		txt2.setText(txt1.getText());}
}