New to Java, need help with program

Hello, I'm new to Java. I have been using Java for a couple of months. I need help with a program that uses dice to play a game of craps. The program needs to run 1000 games and I need to know:

1. how many games are won on the first, second,..., twentieth rolls and after the twentieth roll?

2.how many games are lost on the first, second,..., twentieth rolls and after the twentieth roll?

3. What are the chances of winning at craps?

4. What is the average length of a game of craps?

5. Do the chances of winning improve with the length of the game?

Here's my dice class:

class dice

{

int ar [] [] = new int [6] [6];

public dice()

{

for(int i = 0; i < 6; i++)

{

for(int j = 0; j < 6; j++)

{

ar [i] [j] = i+j+2;

}

}

}

public int get_dice(int rand1, int rand2)

{

return ar [rand1] [rand2];

}

}

Here's my random number generator:

import java.util.Random;

class my_random

{

Random X= new Random();

public my_random(long seed_value)

{

X.setSeed(seed_value);

}

public int get_num()

{

return(X.nextInt(6));

}

}

Heres my my driver for the main program: I know, its flawed:o

import java.util.Random;

class crapsdriver

{

public static void main(String args [])

{

dice classdice_x = new dice();

my_random rand_x = new my_random(56);

int dice_roll = 0;

int random_a = 0;

int random_b = 0;

int counter = 0;

for(int roll=1; roll <1000; roll++)

System.out.println("Number of games lost is:");

counter++;

System.out.println("Number of games won is:");

counter++;

random_a = rand_x.get_num();

random_b = rand_x.get_num();

dice_roll = classdice_x.get_dice(random_a, random_b);

if(dice_roll == 7 || dice_roll == 11)

System.out.println("You Win!");

if(dice_roll == 2 || dice_roll == 12)

System.out.println("You Lose");

while(true)

{

System.out.println("sum= " + dice);

System.out.println(random_a);

System.out.println(random_b);

if(dice_roll == dice_roll)

{

System.out.println("You Win!");

break;

}

if(dice_roll == 7)

{

System.out.println("You Lose");

break;

}

if(dice_roll != 7)

{

System.out.println("Roll Again");

break;

}

}

}

}

I will appreciate any and all help. Thank you.