Making an array of random ints

Question

What i try to to, is generate an array of random int values, where the random values are taken between a min and a max.

So far i came up with this code:

int Min = 0; int Max = 20;  int[] test2 = new int[5]; Random randNum = new Random(); foreach (int value in test2) {     randNum.Next(Min, Max); } 

But its not fully working yet. I think i might be missing just 1 line or something. Can anyone help me out pushing me in the right direction ?

Answer 1

You are never assigning the values inside the test2 array. You have declared it but all the values will be 0. Here's how you could assign a random integer in the specified interval for each element of the array:

int Min = 0; int Max = 20;  // this declares an integer array with 5 elements // and initializes all of them to their default value // which is zero int[] test2 = new int[5];   Random randNum = new Random(); for (int i = 0; i < test2.Length; i++) {     test2[i] = randNum.Next(Min, Max); } 

alternatively you could use LINQ:

int Min = 0; int Max = 20; Random randNum = new Random(); int[] test2 = Enumerable     .Repeat(0, 5)     .Select(i => randNum.Next(Min, Max))     .ToArray();