Thread: Dice Rolling Simulation

I have coded a dice rolling simulation to roll a single die 36,000 times, store the data in the array and display how many times the face value landed. My question is what do I need to do to change this to simulate rolling 2 die to display the output of 2-12 face value, so adding the face value of the 2 randomly rolled die and incrementing face value. Here is the code I have for the single die:

// Dice Rolling
 
import java.util.Random;
 
public class DiceRolling
{
	public static void main( String[] args)
	{
		Random randomNumbers = new Random(); // Generates random numbers
		int[] array = new int[ 7 ]; // Declares the array
 
		//Roll the die 36,000 times
		for ( int roll = 1; roll <=36000; roll++ )
			++array[ 1 + randomNumbers.nextInt ( 6 ) ];
 
		System.out.printf( "%s%10s\n", "Face", "Frequency" );
 
		// outputs array values
		for ( int face = 1; face < array.length; face++ )
			System.out.printf( "%4d%10d\n", face, array[ face ] );
 
	} // end main
 
} // end class DiceRolling

I think I may have a little more information but now I'm getting a dice1 cannot be initialized and I do not believe I am totalling up the two correctly to store them back into the array.

// Dice Rolling

import java.util.Random;

public class DiceRolling
{
public static void main( String[] args)
{
Random randomNumbers = new Random(); // Generates random numbers
int[] array = new int[ 13 ]; // Declares the array
int dice1;
int dice2;
int total;

//Roll the die 36,000 times
for ( int roll = 1; roll <=36000; roll++ )
dice1 = 1 + randomNumbers.nextInt ( 6 );
dice2 = 1 + randomNumbers.nextInt ( 6 );
total = dice1+dice2;
++array[total];

System.out.printf( "%s%10s\n", "Face", "Frequency" );

// outputs array values
for ( int face = 1; face < array.length; face++ )
System.out.printf( "%4d%10d\n", face, array[ face ] );

} // end main

} // end class DiceRolling

Solved:

//Roll the die 36,000 times
		for ( int roll = 1; roll <=36000; roll++ )
		{	
			int die1 = 1 + randomNumbers.nextInt ( 6 );
			int die2 = 1 + randomNumbers.nextInt ( 6 );
			int total = die1 + die2;
			++array[total];
 
		}