Copying arraylist values within itself

Consider i have ArrayLists like these,

1){int[],int,int[]}
2){int[],int[],int} And i have a count, 'n'. If n is 3 then my arrayList should be,

1){int[],int[],int[],int,int[],int[],int[]}

2){int[],int[],int[],int[],int[],int[],int}

i.e The new ArrayList should contain 'n' times the Array int[].

From stackoverflow

• For one thing, do you really have to use an ArrayList? The fact that you're holding different types of data in one collection suggests there's probably a better way of solving your problem. Anyway, you could do something like this:

  public static ArrayList DuplicateIntArrays(ArrayList input, int copies)
  {
      ArrayList ret = new ArrayList();
      foreach (object element in input)
      {
          if (element is int[])
          {
              for (int i=0; i < copies; i++)
              {
                  ret.Add(element);
              }
          }            
          else
          {
              ret.Add(element);
          }
      }
      return ret;
  }