三种布局方式

package windows;

import java.awt.FlowLayout;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;

public class ShowFlowLayout extends JFrame{
	public ShowFlowLayout(){
		super.setLayout(new FlowLayout(FlowLayout.LEFT, 10, 20));
		add(new JLabel("姓名："));
		add(new JTextField(8));
		add(new JLabel("邮箱："));
		add(new JTextField(8));
		add(new JLabel("电话:"));
		add(new JTextField(8));
		
	}
	public static void main(String[] args) {
		ShowFlowLayout frame =new ShowFlowLayout();
		frame.setTitle("FlowLayout");
		frame.setSize(500,200);
		frame.setLocationRelativeTo(null);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);
	}
}

package windows;

import java.awt.GridLayout;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;

public class ShowGrigLayout extends JFrame{
	public ShowGrigLayout() {
		setLayout(new GridLayout(3, 2,5,5));
		add(new JLabel("姓名："));
		add(new JTextField(8));
		add(new JLabel("邮箱"));
		add(new JTextField(8));
		add(new JLabel("电话："));
		add(new JTextField(8));
	}
	public static void main(String[] args) {
		ShowGrigLayout frame=new ShowGrigLayout();
		frame.setTitle("GridLayout");
		frame.setSize(200,125);
		frame.setLocationRelativeTo(null);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);
		
	}
}

package windows;

import java.awt.BorderLayout;

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

public class ShowBorderLayout extends JFrame{
	public ShowBorderLayout() {
		setLayout(new BorderLayout(5, 10));
		
		add(new JButton("东"),BorderLayout.WEST);
		add(new JButton("西"),BorderLayout.EAST);
		add(new JButton("南"),BorderLayout.SOUTH);
		add(new JButton("北"),BorderLayout.NORTH);
		add(new JButton("中"),BorderLayout.CENTER);
	}
	public static void main(String[] args) {
		ShowBorderLayout frame =new ShowBorderLayout();
		frame.setTitle("BorderLayout");
		frame.setSize(300, 200);
		frame.setLocationRelativeTo(null);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);
	}
}