clams.java

班级管理系统

package lab.lab;
import javax.swing.UIManager;
import java.awt.*;
public class ClaMS {
	boolean packFram=false;
	public ClaMS(){
		ClaMain frame=new ClaMain();
		if(packFram){
			frame.pack();
		}
		else{
			frame.validate();
		}
		Dimension screenSize=Toolkit.getDefaultToolkit().getScreenSize();
		Dimension frameSize=frame.getSize();
		if(frameSize.height>screenSize.height){
			frameSize.height=screenSize.height;
		}
		if(frameSize.width>screenSize.width){
			frameSize.width=screenSize.width;
		}
		frame.setLocation((screenSize.width-frameSize.width)/2,(screenSize.height-frameSize.height)/2);
		frame.setVisible(true);
	}
	public static void main(String[] args){
		try{
			UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
		}
		catch(Exception e){
			e.printStackTrace();
		}
		new ClaMS();
	}

}