Minesweeper java noob help

[RobertVanGilder]

Hey guys; whenever I run this program:

package minesweeper;public class MineSweeper {    public static void main(String[] args) {       int M = Integer.parseInt(args[0]);      int N = Integer.parseInt(args[1]);      double p = Double.parseDouble(args[2]);                  boolean[][] bombs = new boolean[M+2][N+2];      for (int i = 1; i <= M; i++)         for (int j = 1; j <= N; j++)            bombs[i][j] = (Math.random() < p);           for (int i = 1; i <= M; i++) {         for (int j = 1; j <= N; j++)            if (bombs[i][j]) System.out.print("x ");            else             System.out.print(". ");         System.out.println();      }           int[][] sol = new int[M+2][N+2];      for (int i = 1; i <= M; i++)         for (int j = 1; j <= N; j++)              for (int ii = i - 1; ii <= i + 1; ii++)               for (int jj = j - 1; jj <= j + 1; jj++)                  if (bombs[ii][jj]) sol[i][j]++;           System.out.println();      for (int i = 1; i <= M; i++) {         for (int j = 1; j <= N; j++)            if (bombs[i][j]) System.out.print("x ");            else             System.out.print(sol[i][j] + " ");         System.out.println();      }   }}

I get the error: Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 0

at minesweeper.MineSweeper.main(MineSweeper.java:6)

 

 

Does anyone know what the issue might be?

[WanderingFool]

Well I have a suspicion of where the "code" is going wrong

      int M = Integer.parseInt(args[0]);      int N = Integer.parseInt(args[1]);      double p = Double.parseDouble(args[2]);

the args is being used without even attempting to see if args has length 3.

if(args.length < 3) {    System.out.println("Error usage must be minesweeper [M] [N] [Probability]");    return;}

Before you use an item in an array (which effectively is user defined) you need to check that the user has inputted that data, because in this case you are likely just running the program like minesweeper.java instead of "minesweeper.java 10 10 0.5".  If you want user input it is actually wise to just use System.in to get the user input