Memory Address Printing Out

Posted 21 February 2012 - 12:16 PM

public abstract class Shape
{
	protected String name;

	public String getName()
	{
		return name;
	}

	public void setName(String name)
	{
		this.name = name;
	}

	public abstract double getSurfaceArea();

	protected double normalize(double entry)
	{
		if (entry < 0)
			return 0.0;
		else
			return entry;
	}

	public String toString()
	{
		return getName() + "surface area: " + getSurfaceArea();
	}
}


public class Square extends Shape
{
	double length;

	public Square(double length)
	{
		this.length = length;
	}

	public double getSurfaceArea()
	{
		double squareSurfaceArea = length * length;
		return squareSurfaceArea;
	}
}

Anyone have any idea why the memory address would print out? I want the ToString method to print out but I can't seem to figure out the problem.

EDIT: Now it is printing out nullSurfaceArea: and then the correct number but I don't understand why it is printing out null.

This post has been edited by tkess17: 21 February 2012 - 12:18 PM