Rotating Square and circle object

[Gortag]

I must create an object that will allow the user to rotate a square and a circle 90 left,90 right,180 on button click.I also need to enlarge/shrink these two shapes on button click(done this).I have attempted to make the shapes rotate,but am stuck.What am I doing wrong.I cannot use vectors or anything that complicated.Thanks.

import java.awt.Color;
import java.awt.Graphics;

public class Creature{
	//definitions
	private int xCoord;
	private int yCoord;
	private int  height;
	private int width;
	
	//default constructor 
	public Creature (){
	 xCoord=0;
	 yCoord=0;
	 height=0;
	 width=0;
	 
	
	} 	//copy constructor
	public Creature (Creature b){
		 xCoord=b.xCoord;
		 yCoord=b.yCoord;
		 height=b.width;
		 width=b.height;
		
		 
		}//normal constructor
	public Creature(int x,int y, int w, int h){ 
		xCoord = x;
		yCoord = y; 
		
		
	}
	
	//mutators(set)
	//accessors(get)
	public int getXCoord() {
		return xCoord;
	}
	
	public void setXCoord(int coord) {
		xCoord = coord;
	}
	
	public int getYCoord() {
		return yCoord;
	}

	public void setYCoord(int coord) {
		yCoord = coord;
	}
	
	public int getHeight() {
		return height;
	}
	
	public void setHeight(int height) {
		this.height = height;
	}
	
	public int getWidth() {
		return width;
	}
	
	public void setWidth(int width) {
		this.width = width;
	}
	

	

	
	public void grow(int n){
		width+=n;
		height=(int)(width/2);
	}
	public void rotate(Graphics g,boolean b){
	if(b){
		g.setColor(Color.green);
		g.fillRect(xCoord,yCoord,height, width);
		g.drawRect(xCoord,yCoord,height,width);	
		g.setColor(Color.black);
		g.fillOval(xCoord+width/2,yCoord,height/3,width/6);
		
		
			   
	}else{
		g.setColor(Color.green);
		g.fillRect(xCoord,yCoord,width,height);
		g.drawRect(xCoord,yCoord,width,height);
		g.setColor(Color.black);
		g.fillOval(xCoord,yCoord-height/3,width/6,height/3);}
		
	
		
	}
	public void move(Graphics g,boolean b){
		if(b){
		
			g.setColor(Color.green);
			g.fillRect(xCoord+20,yCoord,height, width);
			g.drawRect(xCoord+20,yCoord,height,width);	
			g.setColor(Color.black);
			g.fillOval(xCoord+width/2+20,yCoord,height/3,width/6);
			
		}
}	
public void shrink(int n){
	width-=n;
	height=(int)(width/2);
}
	public void display(Graphics g){
		g.setColor(Color.green);
		g.fillRect(xCoord,yCoord,width,height);
		g.drawRect(xCoord,yCoord,width,height);
		g.setColor(Color.black);
		g.fillOval(xCoord,yCoord-height/3,height/3,width/6);
		
	}

}