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← Questions & answers

KITFORMA · EDITORIAL GUIDE

Why does removing the value 1 from List<Integer> remove the second row instead?

KitForma editorial guide. Overloaded methods can interpret the same-looking number as an index or an object. Check the selected signature before investigating list ordering.

Java & JVM →

Step-by-step guidance

Overloaded methods can interpret the same-looking number as an index or an object. Check the selected signature before investigating list ordering. Use values.remove(Integer.valueOf(1)) when removing the first matching value, and values.remove(1) when removing the element at index one. If all matches must disappear, use a clearly stated predicate with removeIf on a mutable list. Preserve a copy if the original data is needed elsewhere. Verify with a list whose second element is not 1, then repeat with duplicates and an absent value. Object removal returns whether a match existed; index removal has different return and bounds behavior. This distinction applies to overload resolution, not to one-based versus zero-based display labels alone.

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Scope: This editorial guide is based on the cited sources and tool behavior. A forum question or a query observed for our site does not establish market search volume, low competition, guaranteed rankings or inadequate answers elsewhere.

This starter guide was prepared by KitForma with AI assistance. It is not presented as a real member question or an independent user review. Check the sources and the result with your own file; report corrections in the discussion.