import java.applet.*; 
import java.awt.*; 
import java.awt.event.*; 

public class sonson extends Applet { 

int x=400,y=250,radius=30; 
boolean canMove=true; 
String s=null; 
Button yuk,as,sag,sol; 
Color col=Color.black; 

public void init(){ 
yuk=new Button(" yukarı "); 
as=new Button(" aşağı "); 
sag=new Button(" sağa "); 
sol=new Button(" sola "); 
this.setLayout(new FlowLayout(FlowLayout.CENTER)); 
this.add(yuk); 
this.add(as); 
this.add(sag); 
this.add(sol); 
setBackground(Color.WHITE); 
yuk.addActionListener(new action_adapter(this,"yuk"));
as.addActionListener(new action_adapter(this,"as"));
sag.addActionListener(new action_adapter(this,"sag"));
sol.addActionListener(new action_adapter(this,"sol"));
this.addKeyListener(new key_adapter(this));
yuk.addKeyListener(new key_adapter(this));
as.addKeyListener(new key_adapter(this));
sag.addKeyListener(new key_adapter(this));
sol.addKeyListener(new key_adapter(this));
this.addMouseListener(new mouse_adapter(this));
this.addMouseMotionListener(new mouse_drag_adapter(this));

} 

public void mouse_Down(MouseEvent e) { 
canMove = false ; 
if(e.getX()>=x-radius && e.getY()<=x+radius) 
if(e.getY()>=y-radius && e.getY()<=y+radius) 
canMove = true ; 

} 

public void mouseDrag(MouseEvent e) { 
if(canMove) { 
x = e.getX() ; 
y = e.getY() ; 
} 
repaint() ; 

} 

public void yukari_actionPerformed(ActionEvent e) { 
	y-=5; 
	repaint();
}
public void asagi_actionPerformed(ActionEvent e) { 
	y+=5; 
	repaint();
}
public void saga_actionPerformed(ActionEvent e) { 
	x+=5; 
	repaint();
}
public void sola_actionPerformed(ActionEvent e) { 
	x-=5; 
	repaint();
}


public void keyReleased(KeyEvent e) { 
switch(e.getKeyCode()) { 
case KeyEvent.VK_UP : 
y -= 5 ; 
repaint() ; 
break ; 
case KeyEvent.VK_DOWN : 
y += 5 ; 
repaint() ; 
break ; 
case KeyEvent.VK_LEFT : 
x -= 5 ; 
repaint() ; 
break ; 
case KeyEvent.VK_RIGHT : 
x += 5 ; 
repaint() ; 
break ; 
case KeyEvent.VK_F1 : 
col = Color.black ; 
repaint() ; 
break ; 
case KeyEvent.VK_F2 : 
col = Color.cyan ; 
repaint() ; 
break ; 
case KeyEvent.VK_F3 : 
col = Color.gray ; 
repaint() ; 
break ; 
case KeyEvent.VK_F4 : 
col = Color.green ; 
repaint() ; 
break ; 
case KeyEvent.VK_F5 : 
col = Color.magenta ; 
repaint() ; 
break ; 
case KeyEvent.VK_F6 : 
col = Color.orange ; 
repaint() ; 
break ; 
case KeyEvent.VK_F7 : 
col = Color.red ; 
repaint() ; 
break ; 
case KeyEvent.VK_F8 : 
col = Color.yellow ; 
repaint() ; 
break ; 
case KeyEvent.VK_F9 : 
col = Color.pink ; 
repaint() ; 
break ; 
case KeyEvent.VK_F10 : 
col = Color.blue ; 
repaint() ; 
break ; 
} 
}

public void paint(Graphics g){ 
s="x:"+x+" "+"y:"+y; 
g.drawString(s,400,10); 
setForeground(col) ; 
g.drawOval(x,y,radius,radius); 
} 



} 

class key_adapter extends KeyAdapter {
    private sonson bagla;
    key_adapter(sonson bagla) {
        this.bagla = bagla;

    }

    public void keyReleased(KeyEvent e) {
        bagla.keyReleased(e);

    }
}
class action_adapter implements ActionListener {
    private sonson bagla;
    private String komut;
    action_adapter(sonson bagla,String komut) {
        this.bagla = bagla;
        this.komut = komut;
    }

    public void actionPerformed(ActionEvent e) {
    	if(komut == "yuk")
        	bagla.yukari_actionPerformed(e);
        if(komut == "as")
        	bagla.asagi_actionPerformed(e);       
        if(komut == "sag")
        	bagla.saga_actionPerformed(e);
        if(komut == "sol")
        	bagla.sola_actionPerformed(e);  
    }
}

class mouse_adapter extends MouseAdapter {
    private sonson bagla;
    mouse_adapter(sonson bagla) {
        this.bagla = bagla;
    }

    public void mousePressed(MouseEvent e) {
        bagla.mouse_Down(e);
    }
}

class mouse_drag_adapter extends MouseMotionAdapter {
    private sonson bagla;
    mouse_drag_adapter(sonson bagla) {
        this.bagla = bagla;
    }

    public void mouseDragged(MouseEvent e) {
        bagla.mouseDrag(e);
    }
}