main.java

提供用户登陆

//package MyPackage;
import java.awt.*;
import javax.swing.*;
import MyPackage.Land;
class Main{
   public static boolean flag=false;
   static JProgressBar progressbar;
   static JWindow window;
   public Main(){
	   window = new JWindow(); // this doesn't work
	   ImageIcon icon=new ImageIcon(".\\resources\\images\\"+"19.jpg");
	   Container container=window.getContentPane();
	   progressbar=new JProgressBar();
	   progressbar.setOrientation(JProgressBar.HORIZONTAL);
	   progressbar.setMinimum(0);
	   progressbar.setMaximum(100);
	   progressbar.setValue(0);
	   progressbar.setStringPainted(true);
	   progressbar.setBackground(Color.lightGray);
	   progressbar.setForeground(Color.gray);
	   progressbar.setString("正在加载Gui多人聊天程序，请稍候......");
	   Font font=new Font("华文新魏",Font.BOLD,30);
	   JLabel jl= new JLabel("欢迎您加入GUI多人聊天室",JLabel.CENTER);
	   jl.setFont(font);
	   jl.setBackground(Color.lightGray);
	   jl.setForeground(Color.gray);
	   progressbar.setPreferredSize(new Dimension(200,30));
	   container.setLayout(new BorderLayout()); 
	   container.add(jl, BorderLayout.NORTH );
	   container.add(new JLabel(icon),BorderLayout.CENTER);
	   container.add(progressbar, BorderLayout.SOUTH );
	   window.setBounds(200,100, 650, 483);
	   window.setVisible(true);
	   new progressThread().start();
	}
	public static void main(String args[]){
		new Main();
		while(true){
			if(flag)
				break;
		}
        window.setVisible(false);
		new Land();

	}
}

class progressThread extends Thread{
	public void run(){
		int i;
		try{
			for(i=0;i<100;i++){
				Thread.sleep(100);
				Main.progressbar.setValue(Main.progressbar.getValue()+1);
			}
			System.out.println("i="+i);
            Main.flag=true;
		}catch(Exception e){System.out.println("异常:"+e);}
	}
}