applet_text1.java

来自「处学java 用的是jdk」· Java 代码 · 共 41 行

//Applet_text1.java
//09.28
///:~

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



public class Applet_text1 extends Applet implements TextListener,ActionListener
{
  TextField tf1;
  TextArea ta1;
  public void init()
  {
    tf1 = new TextField(45);
    ta1 = new TextArea(15,45);
    add(tf1);
    add(ta1);
    tf1.addActionListener(this);
    tf1.addTextListener(this);
  }
  
  public void textValueChanged(TextEvent e)  
  {
    
  }
  
  public void actionPerformed(ActionEvent e)
  {
    if(e.getSource()==tf1){
       ta1.append(((TextField)e.getSource()).getText());
       tf1.setText("");
       ta1.append("\n"); 
    }
  }  
}