java - Print with toString() method

Question

class Box
{
    // Instance Variables
    double length ,ipsos ;
    double width ,mikos ;
    double height ,platos;
    // Constructors
    public Box ( double side )
    {
        width = side ;
        height = side ;
        length = side ;
    }
    public Box ( double x , double y , double z)
    {
        platos = y ;
        ipsos = z;
        mikos = x ;
    }

    // Methods
    double calculate(double praksi)
    {
        return 2 * ( width * height +
        width * length +
        height * length ) ;
    }
    double volume(double emvadon)
    {
        return platos*ipsos*mikos ;
    }

}

In the upper code, how can I make a toString() method, so I can return the values of volume and calculate ??? Im new with java so be as simple as you can please

Answer 1

Not too sure what the parameters of the methods 'calculate', 'volme' are for? If you're looking to override the default toString method, so when you call System.out.println(new Box(1,2,3)): it prints out the volume, and value calculate returns for the box then the following should work:

Box b = new Box(1,2,3);
System.out.println(b);

Then the following should work:

@Override
public String toString()
{
  return "Volume: " + volume(0.0) + ", calculate: " + calculate(0.0);
}

This would print the volume and whatever calculate returns, both clearly labelled.