import java .awt .* ;
   import java .awt . event .* ;
   import java .net .* ;
   import java .io .* ;

   public class Net {
     Frame f ;
     TextField tf,time ;
     Button b;     
     Label lapp;
     PopupMenu pop ; 	
          

   Net (){
      f=new Frame("N E T time ");
      f.setSize(700,110);
      f.setLocation(200,200) ;
      f.setLayout(new GridLayout(1,3)) ;
      lapp=new Label("Host name ");
      pop=new PopupMenu();
      MenuItem quit=new MenuItem("Quit");
      pop.add(quit) ;
      quit.addActionListener(new ActionListener(){
             public void actionPerformed(ActionEvent ae){
                      String item=ae.getActionCommand();
                      if(item.equalsIgnoreCase("quit")){System.exit(0)  ;}    
                     }
         } ); 
      b=new Button("Ask time") ;
      lapp.add(pop);
      lapp.addMouseListener(new MouseAdapter(){
             public void mousePressed(MouseEvent me){
                            if(me.isPopupTrigger()){
                              pop.show(me.getComponent() ,me.getX(),me.getY() ) ; 
                               }
                              }    
             public void mouseReleased(MouseEvent me){
                            if(me.isPopupTrigger()){
                              pop.show(me.getComponent() ,me.getX(),me.getY() ) ; 
                               }
                              }    
             
                            } ); 
      
      b.addMouseListener(new MouseAdapter(){
             public void mousePressed(MouseEvent me){
                          new checkTime(); 
                               }    
                            } ); 
      tf=new TextField() ;
      time=new TextField() ;
      time.setEditable(false) ;
      Container c=new Container();
      c.setLayout(new GridLayout(2,1)) ;
      c.add(lapp) ;
      c.add(tf) ;
      f.add(c) ;
      f.add(b) ;
      f.add(time) ;
      f.addWindowListener(new WindowAdapter(){
              public void windowClosing(WindowEvent we){System.exit(0) ;  }
           }); 		
      f.setVisible(true) ;  
 
    }
     
    class checkTime{     
   
    checkTime(){
        String machine =tf.getText();
      
     try{
         Socket sc=new Socket(machine,13) ;
        BufferedReader in=new BufferedReader(new InputStreamReader(sc.getInputStream())) ;
        time.setText(in.readLine()) ;
                 }catch(Exception e){time.setText("ConnectionError ! "); }
     }
    } 
   ////////////////////////////////////////////////////////
    public static void main(String args[]){
       new Net() ;   
     }
   }