loginapp.java

里面所含源码是本人平时做程序的一些实例

package loginInterface;
import java.awt.*;
import javax.swing.*;

public class LoginApp {
        public LoginApp(){
                LoginFrame frame=new LoginFrame();
                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;
                }
                //使窗口居中对齐
                frame.setLocation((screenSize.width-frameSize.width)/2,(screenSize.height-frameSize.height)/2);
                //显示窗口
                frame.setVisible(true);
        }
        public static void main(String args[]){
                //定义窗口的显示风格
                try{
                        //getSystemLookAndFeelClassName方法表示取得与系统相同的显示风格
                        UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                }
                catch(Exception e){
                        e.printStackTrace();
                }
                new LoginApp();
        }
}