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Thread: Help writing a Template Class

  1. #1
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    Default Help writing a Template Class

    ***if i get useful help with this assignment i will consider hiring you for help with future assignments****


    I have been trying to figure this out for hours... My book and the lectures do not provide any clear examples of how to do this. It's so frustrating because I have other school courses to worry about as well but this is just taking FOREVER


    Write a template class to represent a dice. The dice has one attribute which is number of sides. The class should have all the usual class methods and an additional method that will “roll” the dice. This method uses the Random number generator to “roll” a number between one and the number of sides of the dice; the method returns the number rolled.


    This is what I have so far:
    import java.util.random;
     
    public class Dice {
     
    	{
    		int sideOne;
    		int sideTwo;
    		int sideThree;
    		int sideFour;
    		int sideFive;
    		int sideSix;
     
    		public Dice() {
    			sideOne = 1;
    			sideTwo = 2;
    			sideThree = 3;	
    			sideFour = 4;
    			sideFive = 5;
    			sideSix = 6;
     
    		}
     
    		//use the random class in the methods
     
     
    	}
     
    }




    After I'm done with this class I need to write an application class that rolls two dice but I'll try to figure that out on my own once i get this template class written
    Last edited by copeg; October 5th, 2010 at 09:12 PM.


  2. #2
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    Default Re: Help writing a Template Class

    For future reference, please surround your code with the code tags. Much easier to read.

    Have a look at the API for Random (Java Platform SE 6). It provides functions to retrieve random values. If you wish to retrieve a random number between an interval, use any of functions to retrieve a floating point number and mulitple this times the width of the interval plus the start of the interval. For more information, search the forums for 'dice', you'll pull up many posts similar to yours with useful information

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    Default Re: Help writing a Template Class

    If I'm reading this correctly, then this is all you need to do.
    import java.util.Random;
     
    public class Dice {
    	int numOfSides;
        Random rand;
     
        public Dice(int numOfSides) {
        	this.numOfSides = numOfSides;
        	rand = new Random();
        }
     
        public int rollDie(){
        	return rand.nextInt(numOfSides);
        }    
    }

    If you need a main method then it would look like this:

    import java.util.Random;
     
    public class Dice {
    	int numOfSides;
        Random rand;
     
        public Dice(int numOfSides) {
        	this.numOfSides = numOfSides;
        	rand = new Random();
        }
     
        public static int rollDie(){
        	return rand.nextInt(numOfSides);
        }
     
        public static void main(String[] args){
        	Dice dice = new Dice(6);
        	System.out.println(dice.rollDie());
        } 
    }
    Last edited by Brt93yoda; October 5th, 2010 at 09:40 PM.

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