[vienhuynh]

public class Sphere 
{
	private double diameter;
	private double area;
	private double vol;
	public Sphere()
	{
		diameter=0.0;
	}
	public Sphere(double dia)
	{
		diameter = dia;
	}
	public double getDiameter() 
	{
		return diameter;
	}
	public void setDiameter(double diameter) 
	{
		this.diameter = diameter;
	}
	public double SurfaceArea (double diameter)
	{
		area = 4 * 3.13 * ((diameter/2)*(diameter/2))  ;
		return area;
	}
	public double Vol(double diameter)
	{
		vol = (4/3) * 3.14*((diameter/2)*(diameter/2))  ;
		return vol;
	}
	public String toString()
	{
		return "Here is the sphere " +area+ " and volume " + vol;
	}
	
	
}

and my driver

import java.util.*;
public class Multisphere 
{

	/**
	 * @param args
	 */
	public static void main(String[] args) 
	{
		// TODO Auto-generated method stub
		Scanner scan = new Scanner(System.in);
		System.out.println("Please enter diameter number: ");
		double dia = scan.nextDouble();
		
		Sphere obj = new Sphere(dia);
		obj.SurfaceArea(dia);
		obj.Vol(dia);
		obj.toString();

	}

}

can someone tell me why it doesn't print?

[pbl]

You get the String but do nothing with it

obj.toString();

System.out.println(obj); should do the job

[vienhuynh]

pbl, on 06 March 2012 - 07:33 PM, said:

You get the String but do nothing with it

obj.toString();

System.out.println(obj); should do the job

love you pal I thought if I just return the toString and call the function use the obj, it would return the String to me? NVM, I got it, yea.... i need to print it out, system print out is needed.

This post has been edited by vienhuynh: 06 March 2012 - 07:37 PM