import java.awt.*;
import java.awt.event.*;
import java.applet.Applet;
public class Lift extends Applet implements ActionListener {
int a=441;
Button aa=new Button("9");
Button aa1=new Button("8");
Button aa2=new Button("7");
Button aa3=new Button("6");
Button aa4=new Button("5");
Button aa5=new Button("4");
Button aa6=new Button("3");
Button aa7=new Button("2");
Button aa8=new Button("1");
public Lift(){
   setLayout(null);
aa.setBounds(90, 65, 20, 20);
aa1.setBounds(90, 115, 20, 20);
aa2.setBounds(90, 165, 20, 20);
aa3.setBounds(90, 215, 20, 20);
aa4.setBounds(90, 265, 20, 20);
aa5.setBounds(90, 315, 20, 20);
aa6.setBounds(90, 365, 20, 20);
aa7.setBounds(90, 415, 20, 20);
aa8.setBounds(90, 465, 20, 20);
add(aa);
add(aa1);
add(aa2);
add(aa3);
add(aa4);
add(aa5);
add(aa6);
add(aa7);
add(aa8);
	aa.addActionListener(this);
	aa1.addActionListener(this);
	aa2.addActionListener(this);
aa3.addActionListener(this);
aa4.addActionListener(this);
aa5.addActionListener(this);
aa6.addActionListener(this);
aa7.addActionListener(this);
aa8.addActionListener(this);	
}
public void paint(Graphics g){
int y=40;
	for(int i=1; i<10; i++){		
				g.setColor(Color.black);
				g.drawRect(40, y, 10, 50);			
				g.drawRect(65, y, 85, 50);
				g.drawRect(165, y, 35, 50);
				g.drawLine(50, y, 65, y);
				g.drawLine(150, y, 165, y);						
			  	y=y+50;			
			}
				g.drawRect(51, 440, 13, 50);					
				g.drawRect(151, 440, 13, 50);
				g.drawRect(40, 490, 160, 50);
				g.drawRect(40, 20, 160, 20);				
		}
public void actionPerformed(ActionEvent e){
Graphics g=this.getGraphics();
g.setColor(Color.white);
 	g.drawRect(51, 440, 13, 50);					
	g.drawRect(151, 440, 13, 50);
	g.setColor(Color.black);
	g.drawLine(50, 440, 65 , 440);
	g.drawLine(150, 440, 165 , 440);
	g.drawLine(50, 490, 65 , 490);
	g.drawLine(150, 490, 165 , 490);
 	g.drawRect(51, a, 13, 50);					
	g.drawRect(151, 440, 13, 50);
	if(e.getSource()==aa){
    for(; a>40; a=a-2){
    g.setColor(Color.black);
    g.drawRect(51, a, 13, 50);	
    try{Thread.sleep(20);}catch(Exception viga){}
    if(a>42){
	 g.setColor(Color.white);
	 g.drawRect(51, a, 13, 50);
	       
	}
}
}
if(e.getSource()==aa1){
	if(a>90){
    for(; a>90; a=a-2){
    g.setColor(Color.black);
    g.drawRect(51, a, 13, 50);	
    try{Thread.sleep(20);}catch(Exception viga){}
    if(a>92){
	 g.setColor(Color.white);
	 g.drawRect(51, a, 13, 50);
	 }      
	}
}else{
for(; a<90; a=a+2){
    g.setColor(Color.black);
    g.drawRect(51, a, 13, 50);	
    try{Thread.sleep(20);}catch(Exception viga){}
    if(a<88){
	 g.setColor(Color.white);
	 g.drawRect(51, a, 13, 50);      
	}
	}
}
}
if(e.getSource()==aa2){
	if(a>140){
    for(; a>140; a=a-2){
    g.setColor(Color.black);
    g.drawRect(51, a, 13, 50);	
    try{Thread.sleep(20);}catch(Exception viga){}
    if(a>142){
	 g.setColor(Color.white);
	 g.drawRect(51, a, 13, 50);
	 }      
	}
}else{
for(; a<140; a=a+2){
    g.setColor(Color.black);
    g.drawRect(51, a, 13, 50);	
    try{Thread.sleep(20);}catch(Exception viga){}
    if(a<138){
	 g.setColor(Color.white);
	 g.drawRect(51, a, 13, 50);      
	}
	}
	}


}
if(e.getSource()==aa3){
	if(a>190){
    for(; a>190; a=a-2){
    g.setColor(Color.black);
    g.drawRect(51, a, 13, 50);	
    try{Thread.sleep(20);}catch(Exception viga){}
    if(a>192){
	 g.setColor(Color.white);
	 g.drawRect(51, a, 13, 50);
	 }      
	}
}else{
for(; a<190; a=a+2){
    g.setColor(Color.black);
    g.drawRect(51, a, 13, 50);	
    try{Thread.sleep(20);}catch(Exception viga){}
    if(a<188){
	 g.setColor(Color.white);
	 g.drawRect(51, a, 13, 50);      
	}
	}
}
}
if(e.getSource()==aa4){
	if(a>240){
    for(; a>240; a=a-2){
    g.setColor(Color.black);
    g.drawRect(51, a, 13, 50);	
    try{Thread.sleep(20);}catch(Exception viga){}
    if(a>242){
	 g.setColor(Color.white);
	 g.drawRect(51, a, 13, 50);
	 }      
	}
}else{
for(; a<240; a=a+2){
    g.setColor(Color.black);
    g.drawRect(51, a, 13, 50);	
    try{Thread.sleep(20);}catch(Exception viga){}
    if(a<238){
	 g.setColor(Color.white);
	 g.drawRect(51, a, 13, 50);      
	}
	}
}
}
if(e.getSource()==aa5){
	if(a>290){
    for(; a>290; a=a-2){
    g.setColor(Color.black);
    g.drawRect(51, a, 13, 50);	
    try{Thread.sleep(20);}catch(Exception viga){}
    if(a>292){
	 g.setColor(Color.white);
	 g.drawRect(51, a, 13, 50);
	 }      
	}
}else{
for(; a<290; a=a+2){
    g.setColor(Color.black);
    g.drawRect(51, a, 13, 50);	
    try{Thread.sleep(20);}catch(Exception viga){}
    if(a<288){
	 g.setColor(Color.white);
	 g.drawRect(51, a, 13, 50);      
	}
	}
}
}
if(e.getSource()==aa6){
	if(a>340){
    for(; a>340; a=a-2){
    g.setColor(Color.black);
    g.drawRect(51, a, 13, 50);	
    try{Thread.sleep(20);}catch(Exception viga){}
    if(a>342){
	 g.setColor(Color.white);
	 g.drawRect(51, a, 13, 50);
	 }      
	}
}else{
for(; a<340; a=a+2){
    g.setColor(Color.black);
    g.drawRect(51, a, 13, 50);	
    try{Thread.sleep(20);}catch(Exception viga){}
    if(a<338){
	 g.setColor(Color.white);
	 g.drawRect(51, a, 13, 50);      
	}
	}
}
}
if(e.getSource()==aa7){
	if(a>390){
    for(; a>390; a=a-2){
    g.setColor(Color.black);
    g.drawRect(51, a, 13, 50);	
    try{Thread.sleep(20);}catch(Exception viga){}
    if(a>392){
	 g.setColor(Color.white);
	 g.drawRect(51, a, 13, 50);
	 }      
	}
}else{
for(; a<390; a=a+2){
    g.setColor(Color.black);
    g.drawRect(51, a, 13, 50);	
    try{Thread.sleep(20);}catch(Exception viga){}
    if(a<388){
	 g.setColor(Color.white);
	 g.drawRect(51, a, 13, 50);      
	}
	}
}
}
if(e.getSource()==aa8){
	if(a>440){
    for(; a>440; a=a-2){
    g.setColor(Color.black);
    g.drawRect(51, a, 13, 50);	
    try{Thread.sleep(20);}catch(Exception viga){}
    if(a>442){
	 g.setColor(Color.white);
	 g.drawRect(51, a, 13, 50);
	 }      
	}
}else{
for(; a<440; a=a+2){
    g.setColor(Color.black);
    g.drawRect(51, a, 13, 50);	
    try{Thread.sleep(20);}catch(Exception viga){}
    if(a<438){
	 g.setColor(Color.white);
	 g.drawRect(51, a, 13, 50);      
	}
	}
}
}

}
public static void main(String Arg[]){
		Frame f=new Frame("");
		f.add(new Lift());
		f.setSize(700,700);
		f.setVisible(true);
		f.setResizable(false);	
   }
}