1、 边界布局（BorderLayout）
2、流式布局（FlowLayout）
3、网格布局（GridLayout）
4、盒子布局（BoxLaYout）
5、空布局（null）
还有其他两种布局，分别是GridBagLayout（网格包布局）、CardLayout（卡片布局）
注意：JFrame和JDialog默认布局为BorderLayout，JPanel和Applet默认布局为FlowLayout
边界布局示例代码：
import java.awt.BorderLayout;import javax.swing.JButton;import javax.swing.JFrame;public class BorderLayoutExample extends JFrame{ JButton btn1=new JButton("东"); JButton btn2=new JButton("南"); JButton btn3=new JButton("西"); JButton btn4=new JButton("北"); JButton btn5=new JButton("中"); BorderLayoutExample(){ init(); this.setTitle("边界布局"); this.setResizable(true); this.setSize(200, 200); this.setLocationRelativeTo(null); this.setDefaultCloseOperation(EXIT_ON_CLOSE); this.setVisible(true); } void init(){ this.setLayout(new BorderLayout(10,5)); //默认为0，0；水平间距10，垂直间距5 this.add(btn1,BorderLayout.EAST); this.add(btn2,BorderLayout.SOUTH); this.add(btn3,BorderLayout.WEST); this.add(btn4,BorderLayout.NORTH); this.add(btn5,BorderLayout.CENTER); } public static void main(String args[]){ new BorderLayoutExample(); }}运行结果：
流式布局示例代码：
import java.awt.FlowLayout;import javax.swing.JButton;import javax.swing.JFrame;public class FlowLayoutExample extends JFrame{ JButton btn1=new JButton("one"); JButton btn2=new JButton("two"); JButton btn3=new JButton("three"); JButton btn4=new JButton("four"); JButton btn5=new JButton("five"); FlowLayoutExample(){ init(); this.setTitle("流式布局"); this.setResizable(true); this.setSize(200, 200); this.setLocationRelativeTo(null); this.setDefaultCloseOperation(EXIT_ON_CLOSE); this.setVisible(true); } void init(){ this.setLayout(new FlowLayout(FlowLayout.LEFT,10,5)); //默认为居中;水平间距10，垂直间距5 this.add(btn1); this.add(btn2); this.add(btn3); this.add(btn4); this.add(btn5); } public static void main(String args[]){ new FlowLayoutExample(); }}运行结果：
网格布局示例代码：
import java.awt.GridLayout;import javax.swing.JButton;import javax.swing.JFrame;public class GridLayoutExample extends JFrame{JButton btn1=new JButton("one");JButton btn2=new JButton("two");JButton btn3=new JButton("three");JButton btn4=new JButton("four");JButton btn5=new JButton("five");GridLayoutExample(){init();this.setTitle("表格布局");this.setResizable(true);this.setSize(300, 200);this.setLocationRelativeTo(null);this.setDefaultCloseOperation(EXIT_ON_CLOSE);this.setVisible(true);}void init(){this.setLayout(new GridLayout(2,3,10,5)); //默认为1行，n列；2行3列，水平间距10，垂直间距5this.add(btn1);this.add(btn2);this.add(btn3);this.add(btn4);this.add(btn5);}public static void main(String args[]){new GridLayoutExample();}}运行结果：
盒子布局示例代码：
import javax.swing.Box;import javax.swing.BoxLayout;import javax.swing.JButton;import javax.swing.JFrame;public class BoxLaYoutExample extends JFrame{JButton btn1=new JButton("one");JButton btn2=new JButton("two");JButton btn3=new JButton("three");JButton btn4=new JButton("four");JButton btn5=new JButton("five");BoxLaYoutExample(){init();this.setTitle("表格布局");this.setResizable(true);this.setSize(300, 200);this.setLocationRelativeTo(null);this.setDefaultCloseOperation(EXIT_ON_CLOSE);this.setVisible(true);}void init(){this.setLayout(new BoxLayout(this.getContentPane(),BoxLayout.X_AXIS));//可以使用Box容器代替//Box box = new Box(BoxLayout.Y_AXIS);box.add(btn...);box.add(creat..);this.add(btn1);this.add(btn2);this.getContentPane().add(Box.createHorizontalStrut(10)); //采用x布局时，添加固定宽度组件隔开//this.getContentPane().add(Box.createVerticalStrut(5)); //采用y布局时，添加固定高度组件隔开this.add(btn3);this.add(btn4);this.add(btn5);}public static void main(String args[]){new BoxLaYoutExample();}}运行结果：
空布局示例代码：
import javax.swing.JButton;import javax.swing.JFrame;public class NullLayoutExample extends JFrame{JButton btn1=new JButton("one");JButton btn2=new JButton("two");JButton btn3=new JButton("three");JButton btn4=new JButton("four");JButton btn5=new JButton("five");NullLayoutExample(){init();this.setTitle("空布局");this.setResizable(true);this.setSize(300, 300);this.setLocationRelativeTo(null);this.setDefaultCloseOperation(EXIT_ON_CLOSE);this.setVisible(true);}void init(){this.setLayout(null);btn1.setBounds(10, 0, 100, 50); //x坐标10，y坐标0，组件宽100，高50btn2.setBounds(20, 50, 100, 50);btn3.setBounds(30, 100, 100, 50);btn4.setBounds(40, 150, 100, 50);btn5.setBounds(50, 200, 100, 50);this.add(btn1);this.add(btn2);this.add(btn3);this.add(btn4);this.add(btn5);}public static void main(String args[]){new NullLayoutExample();}}运行结果：