Скачать или смотреть Reverse a Number in Java | Java Basic Programs for Beginners | Step-by-Step Logic

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In this video, you’ll learn how to reverse a number in Java using a simple loop-based logic. This program is a classic question for beginners and often asked in exams and interviews. By the end of this tutorial, you’ll have a clear understanding of how to extract digits and reverse them using Java logic.

🔸 What you’ll learn:

🔢 How to reverse a number in Java
♻️ Extracting digits using % and / operators
🔁 Using a while loop to perform the reversal
🧠 How to build logic step-by-step from scratch
📥 Working with user input using Scanner
✅ Common interview pattern question in Java basics

📌 Program Used:

import java.util.Scanner;
public class ReverseNumber {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print("Enter the number: ");
int num = sc.nextInt();
int rev = 0;

while (num != 0) {
int rem = num % 10;
rev = rev * 10 + rem;
num = num / 10;
}
System.out.println("Reversed Number: " + rev);
}
}

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