applicationgraphicsinout.java

来自「这是个Graphics的小示例。」· Java 代码 · 共 31 行

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

public class ApplicationGraphicsInOut
{
    public static void main(String args[])
     {new FrameInOut();
     }
}

class FrameInOut extends Frame implements ActionListener
{Label prompt;
 TextField input,output;
 
  FrameInOut()
  {super("图形界面的Java Application程序");
   prompt=new Label("请输入您的姓名：");
   input=new TextField(6);
   output=new TextField(20);
   setLayout(new FlowLayout());
   add(prompt);
   add(input);
   add(output);
   input.addActionListener(this);
   setSize(300,200);
   show(); 
 }
 public void actionPerformed(ActionEvent e)
  {output.setText(input.getText()+"，欢迎您！");
   }
}