Java_GUI_布局_流式布局

import java.awt.Container;
import java.awt.FlowLayout;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class FlowLayoutTest
{
    public static void main(String[] args)
    {
        FlowLayoutFrame frame = new FlowLayoutFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setVisible(true);
    }
}

class FlowLayoutFrame extends JFrame
{
    public FlowLayoutFrame()
    {
        setTitle("流式布局管理器");
        setSize(300, 200);

        Container con = getContentPane();
        FlowLayoutPanel panel = new FlowLayoutPanel();
        con.add(panel);
    }
}

class FlowLayoutPanel extends JPanel
{
    public FlowLayoutPanel()
    {
        //实例化流式布局管理器对象
        FlowLayout layout = new FlowLayout(FlowLayout.RIGHT,20,20);
        //设置布局
        setLayout(layout);

        JButton b1 = new JButton("Button 1");
        JButton b2 = new JButton("Button 2");
        JButton b3 = new JButton("Button 3");

        add(b1);
        add(b2);
        add(b3);
    }
}