testtextbox2.java

来自「java2 primer plus一书源程序」· Java 代码 · 共 34 行

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

public class TestTextBox2 extends Applet 
                      implements KeyListener
{
   String echoString = "";
   TextField text1 = new TextField("Some Text 1:46");

   public void init()
   {
      add(text1);
   }
   
   public void paint(Graphics g)
   {
      g.drawString("Hello, Applet", 10, 100);
      g.drawString(echoString, 10, 150);
   }

   public void keyPressed(KeyEvent e){}
   public void keyReleased(KeyEvent e){}
   public void keyTyped(KeyEvent e)
   {
      char char1;
      int mods;
      String modText;
      char1 = e.getKeyChar();
      echoString = echoString + char1;
      System.out.println(echoString);
      this.validate();
   }
}