appletinout.java

来自「针对越来越多的用户喜欢JAVA」· Java 代码 · 共 26 行

import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class AppletInOut extends Applet implements ActionListener
{
  TextField in = new TextField(6);
  Button btn = new Button("确定");
  Label out = new Label("                              ");
  public void init()
  {
    setLayout(new FlowLayout());
    add( in );
    add( btn );
    add( out );
    btn.addActionListener(this);
  }
  public void actionPerformed( ActionEvent e )
  {
    String s = in.getText();
    double d = Double.parseDouble( s );
    double q =d * d * d;
    out.setText( d + "的立方是："+q);
  }
}