Question

I need a array object, that should holds 3 Objects.

At first was using Collection, but I need to add to a specific place. for example:

CollectionObject.add(pos, myObject)

Then I went to ArrayList, created object like this:

ArrayList<MyObject> array = new ArrayList<MyObject>();

When creating this, it creats array with size 1, but I need to add to position 0-2, so adding like:

array.add(2, myObject)

I got :

 java.lang.IndexOutOfBoundsException: Index: 2, Size: 1

My solution is, create arraylist, add 3 empty objects to it, and later overwrite, but any more subtle solution? Are there any better array holding objects, like Vector or something?

Answer 1

Use an array of 3 elements instead as follows:

MyObject [] array = new MyObject[3];
array[2] = myObject;