import javax.swing.*;
import java.awt.*;
public class GridLayoutDemo extends JFrame {
  public GridLayoutDemo()  {
     super("網格布局");
     this.setSize(300,200);
     this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE );
  }
  public void setLayout() {
    GridLayout Layout=new GridLayout(2,3,8,8);
    Container container = getContentPane();
    container.setLayout(Layout);
    for(int i=0;i<5;i++){
      JButton btn=new JButton("按鈕"+i);
      container.add(btn);
    }
  }
  public static void main(String[] args) {
      GridLayoutDemo GridFrame = new GridLayoutDemo();
      GridFrame.setLayout();
      GridFrame.show();
  }
}