流布局.txt

此文件为自己自学JAVA时调试通过的JAVA程序范例

import javax.swing.*;
import java.awt.*;
class FrameTest extends JFrame 
{

 public FrameTest()
  {
    super("窗体标题");
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setVisible(true);
    setSize(500,500);
  }
 }

class ButtonTest extends FrameTest
{
 JButton Button1;
 JButton Button2;
 public ButtonTest()
  {
    Button1=new JButton("左按扭");
    Button2=new JButton("右按扭");  
    getContentPane().add(Button1);
    getContentPane().add(Button2);

  }
}
    
class FlowLayoutTest extends ButtonTest
{
 FlowLayout layout;
 public FlowLayoutTest()
  {
    layout=new FlowLayout();
    getContentPane().setLayout(layout);
  }
}

public class Frame3
{
 public static void main(String[] args)
  {
   new FlowLayoutTest();
  }
}