Question

I am trying to access a private final static double from another class.

Here is the class:

public class coolMath{

private final static double alpha = 5.87;

public coolMath(){

}

public static double calDistance(double x1, double y1, double x2, double y2){
        double dist = Math.sqrt(Math.pow((x2-x1), 2) + Math.pow((y2-y1),2));     
        return dist;
    }

}

I need to access the variable alpha in another class. Is this possible? Does something need to happen in the constructor to make it available? Any ideas?

Answer 1

Either make alpha a public field or provide a public static double getAlpha() that returns it.

If you make the field public, you access it like so double a = coolMath.alpha.

Otherwise, double a = coolMath.getAlpha();

I strongly suggest you go through java modifiers again.