JavaSE基础 awt Frame 窗体在屏幕的中间显示

package com.jizuiku;

import java.awt.Component;
import java.awt.Frame;
import java.awt.Toolkit;

/**
 * 
 * 
 * @author 博客园-给最苦 
 * @version V2017.11.19
 */
public class Demo {

	public static void main(String[] args) {
		Frame f = new Frame();
		  
		// 设置大小
        int width = 400;
        int height = 500;
        f.setSize(width, height);
        
        // 屏幕中间显示窗体
        center(f);
        
        // 可见
        f.setVisible(true);
	}
	
	/**
	 * 传入一个窗体，设置其居中显示
	 * 
	 * */
	public static void center(Component c) {
		Toolkit kit = Toolkit.getDefaultToolkit();
		int x = (kit.getScreenSize().width - c.getWidth()) / 2;
		int y = (kit.getScreenSize().height - c.getHeight()) / 2;
		c.setLocation(x, y);
	}

}