title: Java run-time error
body: <p>I am running this code:</p>
  
  <pre><code>/* package whatever; // don't place package name! */
  
  import java.util.*;
  import java.lang.*;
  import java.io.*;
  
  
  class Ideone
  {
   public static int solution(int X, int[] A) {
      int[] myNumbers = new int[X];
      for (int i = 0; i &lt; A.length; i++){
          myNumbers[A[i]] = A[i];
  
         }
          return -1;
  
  }
  
  public static void main (String[] args) throws java.lang.Exception
  {
      // your code goes here
      int[] A = {1,3,1,4,2,3,5,4};
      System.out.println(solution(5,A));
  }
  }
  </code></pre>
  
  <p>However, I get a run-time error. I don't know why.  I need to store the value of the array in A in another array with that value as an index.  I.e myNumbers[4] = 4.  </p>