Just do it ;-;

package com.stackOverflow.questions;

public class PrintArrays
{
    static int X = 5;  // for example
    static int N = 7; // for example

    public static void main(String[] args)
    {
    //get X and N from the user.

    int arr[] = new int[N];

    doYourThing(arr, 0, 0);
    }

    public static void doYourThing(int arr[], int num, int mode) //mode = is he need to count up or stop when he get to X
    {
    if(num == N)
    {
        return;
    }
    int alreadyHas = (num != 0 && mode != 1)?(1):(0);
    for(int i = alreadyHas; i < X; i++)
    {
        arr[num] = i;
        printArr(arr);
        if(num > 0)
        {
        doYourThing(arr, num-1, 1);
        }
    }
    arr[num] = 0;
    if(mode == 0)
    {
        doYourThing(arr, num+1, 0);
    }
    }

    public static void printArr(int arr[])
    {
    String str;
    str = "[";
    for(int i = arr.length-1; i >= 0; i--)
    {
        str += arr[i] + ",";
    }
    str = str.substring(0, str.length()-1);
    str += "]";
    System.out.println(str);
    }
}