java GUI设计和布局 - JAVA

0);
setLocation(100,200);
//setBounds(200.100,300,100);
setVisible(true);
}
public static void main(String[] args) {
new GridLayoutDemo();
}
}
import java.awt.*;
public class GridLayoutDemo extends Frame {
Button[] b = new Button[5];
public GridLayoutDemo(){
super("网格布局");
for(int i=0; i b[i] = new Button("按钮"+i);
}
setLayout(new GridLayout(3,2));
add(b[0]);
add(b[1]);
add(b[2]);
add(b[3]);
add(b[4]);
pack();
setSize(300,100);
setLocation(100,200);
//setBounds(200.100,300,100);
setVisible(true);
}
public static void main(String[] args) {
new GridLayoutDemo();
}
}pack()：最紧凑的格式摆放

CardLayout：卡片布局
布局效果：将多个组件在同一容器区域内交替显示，相当于多张卡片摞在一起，只有最上面的卡片是可见的。
构造方法
public CardLayout()
public CardLayout(int hgap, int vgap)
其他方法
public void first(Container parent)—显示第一张卡片
public void last(Container parent)—显示最后一张卡片
public void previous(Container parent)—显示前一张卡片
public void next(Container parent)—显示后一张卡片
public void show(Container parent,String name)翻转到指定名称的组件，若不存在不发生操作[java] view plaincopyprint import java.awt.*;
public class CardLayoutDemo {
public static void main(String[] args) {
Frame f=new Frame("CardLayout Example");
CardLayout c1=new CardLayout();
f.setLayout(c1);
Label lbl[]=new Label[4];
for(int i=0;i<4;i++){
lbl[i]=new Label("第"+i+"页");
f.add(lbl[i],"card"+i);
}
while(true){
try{
Thread.sleep(1000);
}catch(InterruptedException e){
e.printStackTrace();
}
c1.next(f);
}
}
}
import java.awt.*;
public class CardLayoutDemo {
public static void main(String[] args) {
Frame f=new Frame("CardLayout Example");
CardLayout c1=new CardLayout();
f.setLayout(c1);
Label lbl[]=new Label[4];
for(int i=0;i<4;i++){
lbl[i]=new Label("第"+i+"页");
f.add(lbl[i],"card"+i);
}
while(true){
try{
Thread.sleep(1000);
}catch(InterruptedException e){
e.printStackTrace();
}
c1.next(f);
}
}
}

GridBagLayout：动态矩形单元网格

摘自 zhaoyazhi2129的专栏

java GUI设计和布局(三)