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Thread: OOP composition - MyPoint and MyTriangle. need hint for building MyTriangle class

  1. #1
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    Default OOP composition - MyPoint and MyTriangle. need hint for building MyTriangle class

    Basically i need to build this MyTriangle class. together with the code from MyPoint, i need to test out the following.

    oop.jpg
    when i try to build the constructor part where v1 = (x1, y1) it says my y1 is not a int variable.
    also how do i link the two class together?

    MyPoint code is as followed:

    public class MyPoint {
     
    	private int x;
    	private int y; 
     
    	public MyPoint(){
    		x = 0; 
    		y = 0; 
     
    	}public MyPoint(int x, int y){
    		this.x = x; 
    		this.y = y; 
     
    	}public int getX(){
    		return x; 
     
    	}public void setX(int x){
    		this.x = x; 
     
    	}public int getY(){
    		return y; 
     
    	}public void setY(int y){
    		this.y = y; 
     
    	}public void setXY(int x, int y){
    		this.x = x; 
    		this.y = y; 
     
    	}public String toString(){
    		return "(" + x + ", " + y + ")"; 
     
    	}public double distance(int x, int y){
    		int xDiff = this.x - x; 
    		int yDiff = this.y - y; 
    		return Math.sqrt(xDiff*xDiff + yDiff*yDiff); 
     
    	}public double distance(MyPoint another){
    		int xDiff = this.x - another.x; 
    		int yDiff = this.y - another.y;
    		return Math.sqrt(xDiff*xDiff + yDiff*yDiff); 
     
    	}
    }


  2. #2
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    Default Re: OOP composition - MyPoint and MyTriangle. need hint for building MyTriangle class

    I don't see a v1, x1, or y1 in the code you posted. Please post the code producing the error AND the entire error message/stack trace, copied from exactly as it appears at your end and pasted into your post.

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