import java.awt.FlowLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
//1.继承 JFrame类
//2.在最上方定义组件
//3.在构造方法中创建组件
//4、在构造方法中添加组件
//5.设置窗体属性
//6.显示窗体
//7.在主函数中创建对象
public class flowlayout1 extends JFrame{
JButton [] a={null,null,null,null,null,null,null,null};
public static void main(String[] args) {
// TODO Auto-generated method stub
flowlayout1 f1=new flowlayout1();
}
public flowlayout1 ()
{
a[0]=new JButton("瓜子");
a[1]=new JButton("话梅");
a[2]=new JButton("西瓜");
a[3]=new JButton("草莓");
a[4]=new JButton("香蕉");
a[5]=new JButton("苹果");
a[6]=new JButton("栗子");
a[7]=new JButton("黄瓜");
//a[8]=new JButton("葡萄");
this.setLayout(new FlowLayout(FlowLayout.LEADING));//默认是边界布局,如果想变成其他布局,加上
this.add(a[0]);
this.add(a[1]);
this.add(a[2]);
this.add(a[3]);
this.add(a[4]);
this.add(a[5]);
this.add(a[6]);
this.add(a[7]);
this.setTitle("流式布局flowlayout");
this.setSize(400,320);
this.setLocation(100, 180);
this.setResizable(true);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setVisible(true);
}
}
![](https://images2015.cnblogs.com/blog/1026835/201611/1026835-20161104153414752-1983498149.png)
![](https://images2015.cnblogs.com/blog/1026835/201611/1026835-20161104153458736-568131684.png)