java applet Example

语言类学习笔记 2008-9-16 2:56

*
* @author
* @version 1.00 2007/9/22
*/
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import java.applet.*;

public class A1 extends Applet implements ActionListener{
    Label xm;
    TextField sxm,ssxm;
    Button tj;

    public void init(){
    xm= new Label("");
    sxm= new TextField(6);
    ssxm= new TextField(20);
    tj =new Button("Enter");
    add(xm);
        add(sxm);
    add(ssxm);
    add(tj);
    tj.setSize(50,50);

    xm.setText("aaaa:");
    tj.addActionListener(this);
    ssxm.addActionListener(this);
    }


    public void paint(Graphics g){
       g.draw3DRect(1,1,400,200,true);
       g.drawString(xm.getText()+sxm.getText()+ssxm.getText(),120,220);
    }

    public void actionPerformed(ActionEvent e)
    {
      Graphics g;
    if (e.getSource().equals(ssxm) ){
      sxm.setText("OK");
    }


    ssxm.setText(sxm.getText().toUpperCase()+"aaaa");
    repaint();
    }

}

编译生成*.class

然后生成一个网页代码如下:

<html>
<body>
<applet CODE="A1.class" width=420 height=220 >
aaaaaaaaa</applet>
</body>
</html>

两都放在同一位置

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