Скачать или смотреть Day 5 - Code Java Smart | Rounding Off

Welcome to Code Java Smart, where we explore efficient and optimized approaches to Java programming. In today’s video, we explore Rounding Off in Java, a technique used to limit decimal places while maintaining numerical accuracy.

What is Rounding Off? Rounding off means reducing the number of decimal places in a floating-point number while keeping its value as close as possible to the original. It improves readability and precision control.
For example:
Original: 12.34567
Rounded to 2 decimal places: 12.35

Optimized Approach to Rounding Off in Java
1️⃣ Using format() Method
Java provides a simple way to round numbers using the format() method:
🔹 Use System.out.format("%.df", number); where d is the number of decimal places.
🔹 This method converts the number to a formatted string.

✅ Pros: Quick and easy to use.
❌ Cons: Returns a string, requiring conversion back to a number if needed.

Which Method is Best?
If you need a quick and simple approach, use format().
If you need precise control over rounding behavior (like rounding modes), consider DecimalFormat or mathematical operations.

Study resources :
https://github.com/Jain131102/Code-Ja...
https://www.geeksforgeeks.org/java-pr...
Connect with me:
https://bento.me/sourabh-jain

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