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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.
Jul 14, 2023 · 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. Reverse a Number Using the While Loop . Simply apply the steps/algorithm discussed and terminate the loop when the number becomes zero.
Reversed Number: 4321. In this program, while loop is used to reverse a number as given in the following steps: First, the remainder of the num divided by 10 is stored in the variable digit. Now, the digit contains the last digit of num, i.e. 4. digit is then added to the variable reversed after multiplying it by 10.
Jun 13, 2024 · Reverse A Number In Java – We have discussed the various methods to reverse a number in Java program. To each and every program, compiler is added to execute the program. Along with it, sample outputs are also given citing various examples. The methods are: Using While Loop; Using Static Method; Using Function; Using Recursion; Using While Loop
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.
How to write a Java Program to Reverse a Number using While Loop, For Loop, Built-in reverse function, Functions, and Recursion. With no direct approach, you must use logic to extract the last digit from the number, add it to the first position, and repeat the process until all digits are completed.
Sep 15, 2022 · There are several ways to reverse a number in Java. We will mainly discuss following three techniques to reverse a number. Table of contents. Program 1: Reverse a number using while Loop. Program 2: Reverse a number using for Loop. Program 3: Reverse a number using recursion. Program 1: Reverse a number using while Loop.
Program Explanation. Before writing the program, let’s break down the process into steps: Initialize the reversed number: Start with a variable called reversed and set it to 0. Loop until the number is not zero: The loop will serve to extract digits from the original number one by one.
Java Program to Reverse a Number. Author: Ramesh Fadatare. Core Java Java Java Programs. 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. 1. Java Program to Reverse a Number using a while loop in Java.
Jul 12, 2023 · 1. Reverse a number in Java Using the while loop. 2. Reverse a number in Java Using do-while Loop. 3. Reverse a number in Java Using Recursion. 4. Reverse a number in Java Using String. 5. Reverse a number in Java Using Array. How do I reverse a decimal number (7893.679) without using any string functions in Java? Conclusion.
