flowlayoutdemo.java

本java源程序包括了大量的学习程序（共27章）方便大家学习

import java.awt.FlowLayout;
import javax.swing.JFrame;
import javax.swing.*;
import java.awt.*;
public class FlowLayoutDemo extends JFrame
{
	  //声明JButton组件对象
    JButton jbutton1,jbutton2,jbutton3,jbutton4;

    public FlowLayoutDemo()
    {
    	  super("FlowLayout Demo");
    	  //设置内容面板的布局方式为:流动布局FlowLayout方式
        getContentPane().setLayout(new FlowLayout());
        
        //创建JButton组件对象
        jbutton1=new JButton("JButton1");
        jbutton2=new JButton("JButton2");
        jbutton3=new JButton("JButton3");
        jbutton4=new JButton("JButton4");
        
        //向内容面板中添加按钮组件对象
        getContentPane().add(jbutton1);
        getContentPane().add(jbutton2);
        getContentPane().add(jbutton3);
        getContentPane().add(jbutton4);
    }

    public static void main(String[] args)
    {
        FlowLayoutDemo flowLayoutDemo = new FlowLayoutDemo();
        flowLayoutDemo.setSize(200,100);   //设置窗口大小
        flowLayoutDemo.setVisible(true);  //设置窗口可见
        flowLayoutDemo.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
}