Apr 8, 2025 · Methods to Reverse a Number in Java. We can reverse a number in Java using three main methods as mentioned below: Using While Loop ; Using Recursion; Using StringBuilder class; 1. Using While Loop . Simply apply the steps/algorithm discussed and terminate the loop when the number becomes zero. Example: Java

In this program, you'll learn to reverse a number using a while loop and a for loop in Java.

In this tutorial, we will learn how to write a Java program to reverse a number using a while loop and a for loop in Java. We will read input from the console using Scanner class.

In this tutorial, we covered two effective methods for reversing an integer in Java: using string manipulation and a mathematical approach. We also discussed possible edge cases such as negative numbers and integer overflow.

Jan 8, 2024 · In this tutorial, we’ll see how to reverse a number using a mathematical approach in Java. First, we’ll see what math operations are necessary for doing this, and then we’ll go through three different ways of implementing this.

In Java, this task can be approached using various techniques, and in this tutorial, we'll explore them in detail. This guide will cover everything you need to know about reversing a number, including reasoning, code examples, and performance considerations.

Mar 17, 2025 · There are three ways to reverse a number in Java: Reverse a number using while loop; Reverse a number using for loop; Reverse a number using recursion; Let's apply the above steps in an example. Example. Suppose, we want to reverse the number 1234.

Within the loop, the program calculates the remainder of num when divided by 10 using the modulus operator, and adds it to rev multiplied by 10 to add the current digit to the reversed number. It then divides num by 10 to remove the last digit from the number and continue the loop.

Sep 15, 2022 · There are several ways to reverse a number in Java. We will mainly discuss following three techniques to reverse a number. In this program, user is asked to enter a number. This input number is read and stored in a variable num using Scanner class. The program then uses the while loop to reverse this number.

Learn how to reverse a number in Java with this simple program. Step-by-step guide on using loops and techniques to achieve the desired output.