在GridBagLayout布局管理器中,一个组件可以跨越一个或多个网格,并可以设置各网格的大小互不相关. import java.awt.*; public class GridBagTest { private Frame f = new Frame("测试窗口"); private GridBagLayout gb = new GridBagLayout(); private GridBagConstraints gbc = new GridBagConstraints(); p…
GridLayout布局管理器将容器分割成纵横线分格的网格,每个网格所占的区域大小相同. import java.awt.*; public class GridLayoutTest { public static void main(String[] args) { var f = new Frame("计算器"); f.setLayout(new BorderLayout()); var p1 = new Panel(); p1.add()); f.add(p1, BorderLa…
public class GirdLayoutPosition extends JFrame{ public GirdLayoutPosition() { Container c=getContentPane();//一定要这样表示; setLayout(new GridLayout(7, 3, 5, 5)); for (int i = 0; i < 20; i++) { c.add(new JButton("Bu…
AWT提供了FlowLayout 从左到右排列所有组件,遇到边界就会折回下一行重新开始. import java.awt.*; public class FlowLayoutTest { public static void main(String[] args) { var f = new Frame("FlowLayout test"); f.setBounds(30,30,100,100); f.setLayout(new FlowLayout(FlowLayout.TRAI…
import javax.swing.*; import java.awt.*; import java.awt.event.ActionListener; public class CardLayoutTest { Frame f = new Frame("cardlayout test"); Panel p1 = new Panel(); String[] names = {"上一张","下一张","第一张","…
BorderLayout 将容器分为EAST, SOUTH, WEST,NORTH,CENTER五个区域. public class BorderLayoutTest { public static void main(String[] args) { var f = new Frame("BorderLayout"); f.setLayout(new BorderLayout()); f.add(new Button("south"), BorderLayout.…
JAVA流式布局管理器的使用: FlowLayoutDeme.java: import java.awt.*;import javax.swing.*;public class FlowLayoutDemo extends JFrame { JButton[] jbtn={null,null,null,null,null,null,null,null};//要为null不然有异常 public FlowLayoutDemo() {// for (int i = 0;…
1.BorderLayout(边界布局) 边界布局管理器把容器的的布局分为五个位置:CENTER.EAST.WEST.NORTH.SOUTH.依次对应为:上北(NORTH).下南(SOUTH).左西(WEST).右东(EAST),中(CENTER) 如图所示: 特征: l 可以把组件放在这五个位置的任意一个,如果未指定位置,则缺省的位置是CENTER. l 南.北位置控件各占据一行,控件宽度将自动布满整行.东.西和中间位置占据一行;若东.西.南.北位置无控件,则中间控件将自动布满整个屏幕.若…