grid布局方式_grid网格布局

package practice;

import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.JButton;
import javax.swing.JFrame;

@SuppressWarnings("serial")								//关闭类或方法级别的警告
public class GridBagConstraintsTest extends JFrame {
	/**
	 * 构造
	 */
	public GridBagConstraintsTest()  {
		super();	
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);				//添加响应窗口关闭事件
		getContentPane().setLayout(new GridBagLayout());			//添加窗口容器的布局方式
		initOne();		<span style="white-space:pre">						</span>//测试gridex与gridey属性
	}
	
	/**
	 * 测试
	 */
	public static void main(String[] args) {
	 	new GridBagConstraintsTest().setVisible(true);				//创建一个窗口对象并设置可见
	}

}

	private void initOne() {
		JButton aBtn =  new JButton("组件A");					//创建带文字的5个按扭：组件A-组件E
		JButton bBtn =  new JButton("组件B");
		JButton cBtn =  new JButton("组件C");
		JButton dBtn =  new JButton("组件D");
		JButton eBtn =  new JButton("组件E");
		
		setTitle("gridex与gridey属性测试");					//标题
		setBounds(100, 100, 400, 300);						//显示位置及大小
		
		GridBagConstraints gridBagConstraintsA = new GridBagConstraints();	//创建一个网格组布局管理器对象
		gridBagConstraintsA.gridy = 0;						//从第一行开始
		gridBagConstraintsA.gridx = 0;						//从第一列开始
		getContentPane().add(aBtn, gridBagConstraintsA);			//将按扭添加到创建的布局管理器中
		
		GridBagConstraints gridBagConstraintsB = new GridBagConstraints();
		gridBagConstraintsB.gridy = 0;						//从第一行第三列开始
		gridBagConstraintsB.gridx = 2;
		getContentPane().add(bBtn, gridBagConstraintsB);
		
		GridBagConstraints gridBagConstraintsC = new GridBagConstraints();
		gridBagConstraintsC.gridy = 1;						//从第二行第二列开始
		gridBagConstraintsC.gridx = 1;
		getContentPane().add(cBtn, gridBagConstraintsC);
		
		GridBagConstraints gridBagConstraintsD = new GridBagConstraints();
		gridBagConstraintsD.gridy = 2;						//从第三行第一列开始
		gridBagConstraintsD.gridx = 0;
		getContentPane().add(dBtn, gridBagConstraintsD);
		
		GridBagConstraints gridBagConstraintsE = new GridBagConstraints();
		gridBagConstraintsE.gridy = 2;						//从第三行第三列开始
		gridBagConstraintsE.gridx = 2;
		getContentPane().add(eBtn, gridBagConstraintsE);
		
	}