movablepoint.java

class point2d {
	private float x;
	private float y;
	
	public point2d(){
		this.x=0;
		this.y=0;
	}
	public point2d(float x,float y){
		this.x=x;
		this.y=y;
	}
	public float getX(){
		return this.x;
	}
	public float getY(){
		return this.y;
	}
	public float [] getXY(){
		float a[]={this.x,this.y};
		return a;
	}
	public void setX(float x){
		this.x=x;
	}
	public void setY(float y){
		this.y=y;
	}
	public void setXY(float x,float y){
		this.x=x;
		this.y=y;
	}
	public String toString(){
		return "("+this.x+","+this.y+")";
	}
	
}


class Movable_point extends point2d {
	private float xSpeed;
	private float ySpeed;
	
	public Movable_point(float x,float y,float xSpeed,float ySpeed){
		super(x,y);
		this.xSpeed=xSpeed;
		this.ySpeed=ySpeed;
	}
	public Movable_point(float xSpeed,float ySpeed){
		super();
		this.xSpeed=xSpeed;
		this.ySpeed=ySpeed;
	}
	public Movable_point(){
		super();
		this.xSpeed=0;
		this.ySpeed=0;
	}
	public float getXspeed(){
		return this.xSpeed;
	}
	public float getYspeed(){
		return this.ySpeed;
	}
	public void setXspeed(float xSpeed){
		this.xSpeed=xSpeed;
	}
	public void setYspeed(float ySpeed){
		this.ySpeed=ySpeed;
	}
	public void setSpeed(float xSpeed,float ySpeed){
		this.xSpeed=xSpeed;
		this.ySpeed=ySpeed;
	}
	public float[] getSpeed(){
		float a[]={this.xSpeed,this.ySpeed};
		return a;
	}
	public Movable_point move(){
	
		//implement move 
		return this;
	}
}