Is there any convenient way in List/ArrayList by which we can remove all elements of a List after a particular index. Instead of manually looping through it for removing.
To be more explanatory, if I have a list of 10 elements, I want to mention index 3 and then all elements after index 3 gets removed and my list would consist of only starting 4 elements now (counts from 0)
list.subList(4, list.size()).clear();
Sublist operations are reflected in the original list, so this clears everything from index 4 inclusive to list.size()
exclusive, a.k.a. everything after index 3. Range removal is specifically used as an example in the documentation:
This method eliminates the need for explicit range operations (of the sort that commonly exist for arrays). Any operation that expects a list can be used as a range operation by passing a subList view instead of a whole list. For example, the following idiom removes a range of elements from a list:
list.subList(from, to).clear();
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