How to Swap Variables Without Temp in Java | Tamil Tutorial Day 21 | Code99 Velachery

Welcome back to Java Full Course in Tamil — Day 21.

We have covered variables, data types, and arithmetic operators.
Today, we bring it all together into one of the most tested and
most misunderstood concepts in Java fundamentals — Swapping values
between two variables using arithmetic operators.

In this episode, we cover:

→ What swapping means in the context of Java programming
→ How arithmetic operators enable swap logic without a third variable
→ Step-by-step breakdown of the addition and subtraction swap method
→ Why this logic is consistently tested in Java interviews and placement rounds
→ How understanding this builds stronger problem-solving instinct

This is not just a concept. This is interview ammunition.

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ABOUT THIS COURSE
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Java Full Course in Tamil is a structured daily series by Code99 IT Academy,
Chennai Velachery — designed to take complete beginners to
placement-ready Java developers, one concept at a time.

Every episode is connected. Every concept builds forward.

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WHO THIS IS FOR
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◆ Students preparing for Java placement rounds in Chennai
◆ Freshers building strong Java logic for technical interviews
◆ Learners following this Java tutorial in Tamil from Day 1
◆ Anyone who wants to master Java arithmetic operator logic

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ABOUT CODE99 IT ACADEMY
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🧠 Every concept you learn today is an answer in tomorrow's interview.
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Subscribe. Stay consistent. Day 22 is next.

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Видео How to Swap Variables Without Temp in Java | Tamil Tutorial Day 21 | Code99 Velachery канала Code99 IT Academy