Question About Checking Values of Arrays

So for the project I am working on I have an array that randomly generates 25 integers between the values of -10 and 15. I have a value stored to each element of the array but now I need to print out how many times each number is generated. The code I have so far is as follows.

  public static void main(String[] args) {
    randomArray();
  }

  public static void randomArray() {
    int[] intArray = new int[25];
    for(int I = 0; I < intArray.length - 1; I++) {
      intArray[I] = ((int)Math.random() * 25) -10;
      // ignore the math.random above, that's not how I actually did it
      // that is just for example, my actual method works properly
    }
  }

Now I just need to get the values of each element in intArray and print how many times each value occurs. Any ideas as to how are greatly appreciated. Thanks!