Question

i have bug that i cannot find, i have Class Point with method who receive other point and return true if my point is under the other poing and false if not, my problem is if my point x property is equal to other point x i still received true which is incorrect:

public class Point
{
    private double _x;
    private double _y;

    public Point(double x,double y)
    {
        _x = x;
        _y = y;
    }

    public boolean isAbove(Point other)
    {
        if (_x > other._x)
        {
            return true;
        }
        else 
        {
            return false;
        }
    }

    public boolean isUnder(Point other)
    {   
        if (isAbove(other))
        {
            return false;
        }
        else
        {
            return true;
        }
    }
}

Answer 1

Try that:

public boolean isAbove(Point other)
{
    return (_x > other._x);
}

public boolean isUnder(Point other)
{   
    return (_x < other._x);
}

Why you had a bug: because the opposite of A < B is A >= B, not A > B.