Swap Two Variables Without Temp | Java Arithmetic Trick | Day 21

Two variables. No third variable.
Values swapped using just + and —
This logic appears in EVERY Java interview.

Swap two variables using arithmetic operators — no temp variable needed.

This is one of the most tested Java logic questions in placement rounds
and technical interviews for freshers.

Day 21 of Java Full Course in Tamil — Code99 IT Academy, Chennai Velachery.

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https://youtu.be/30s059ZtfRg

⚡ 30 seconds. One concept. One step closer to placement.
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