texteventtest.java

java课程的资料以及实验的代码

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

public class TextEventTest extends Frame implements TextListener{
  private TextField tf1,tf2;

  public TextEventTest(){
    setLayout(new GridLayout(2,1));
    tf1=new TextField();
    tf1.addTextListener(this);
    tf2=new TextField();
    add(tf1);
    add(tf2);
  }

  public void textValueChanged(TextEvent e){
    tf2.setText(tf1.getText());
  }
  
  public static void main(String args[]){
    TextEventTest test=new TextEventTest();
    test.setSize(300,200);
    test.setVisible(true);
  }
}
//课后作业：改为按回车时如何将字符传到第二个文本域中