public void move(char dir){
		switch (dir) {
		case 'W': if(yCord > 0) 
				  	yCord -= 1;
				  else
					System.out.println("Invalid move please choose again\n");
				  break;
				
		case 'S': if(yCord < (Game.ROWS-1)) 
		  			yCord += 1;
		  		  else
		  			System.out.println("Invalid move please choose again\n");
		  		  break;
		
		case 'A': if(xCord > 0)
		  			xCord -= 1;
		  		  else
		  			System.out.println("Invalid move please choose again\n");
				  break;
		
		case 'D': if(xCord < (Game.COLUMNS-1))
  					xCord += 1;
		  		  else
		  			System.out.println("Invalid move please choose again\n");
		  		  break;
		
		}
	}// exit method move