Java ArrayList replace at specific index

Question

I need help with this java please. I created an ArrayList of bulbs, and I\'m trying to replace a bulb at specific index with another bulb. So with the following heading, how

Answer 1

You can replace the items at specific position using set method of ArrayList as below:

list.set( your_index, your_item );

But the element should be present at the index you are passing inside set() method else it will throw exception.