frmcenter.java

用eclipse编写的图书管理系统

package sever.entity;

import java.awt.Dimension;
import java.awt.Toolkit;

import javax.swing.JDialog;
import javax.swing.JFrame;


public class FrmCenter {
	
	public void centeredFrm(JDialog jj){
		//居中窗口
		Dimension screenSize=Toolkit.getDefaultToolkit().getScreenSize();
		Dimension frameSize=jj.getSize();
		if(frameSize.height>screenSize.height){
			frameSize.height=screenSize.height;
		}
		if(frameSize.width>screenSize.width){
			frameSize.width=screenSize.width;
		}
		jj.setLocation((screenSize.width-frameSize.width)/2,(screenSize.height-frameSize.height)/2);
	}
	public void centeredFrm(JFrame jj){
		//居中窗口
		Dimension screenSize=Toolkit.getDefaultToolkit().getScreenSize();
		Dimension frameSize=jj.getSize();
		if(frameSize.height>screenSize.height){
			frameSize.height=screenSize.height;
		}
		if(frameSize.width>screenSize.width){
			frameSize.width=screenSize.width;
		}
		jj.setLocation((screenSize.width-frameSize.width)/2,(screenSize.height-frameSize.height)/2);
	}
}