Changing the value of an entry at a given position in a list would most likely be done by a "set" method.
Typically lists have methods like:
- get(index) - To retrieve the element at a given index
- add(element) - To add a new element to the list
- remove(index) - To remove the element at a given index
- set(index, element) - To set/change the element at a given index
So the set(index, element) method would be used to change the value of the entry at a specific position in the list.
The reason is:
- get() only reads the value at an index
- add() appends a new element, but doesn't modify existing ones
- remove() deletes an element rather than changing it
But set(index, element) allows you to directly replace the entry at index with a new element. This changes the value at that position as required.
So for modifying an existing entry in a list, the set() method is most likely to be used.