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In this section, we will learn what is a perfect number in Java and also create Java programs to check if the given number is perfect or not. Also, we will create a Java program for finding all the perfect numbers between the given range.
Jul 30, 2023 · 1. Using Loop to Check Perfect Number in Java. A Simple Solution is to go through every number from 1 to n-1 and check if it is a divisor and if it is, then add it in the sum variable and at the end check if the sum is equal to the number itself, then it is a perfect number otherwise not.
Jul 20, 2024 · 1) The number which is equal to the sum of its divisors is called a perfect number. 2) Read the entered long number, assigned to the long variable n. 3) while loop iterates until the condition (i<=n/2) is false. If the remainder of n/i=0 then add i value to sum and increase the i value.
Feb 25, 2024 · Perfect Number. Last Updated : 25 Feb, 2024. A number is a perfect number if is equal to sum of its proper divisors, that is, sum of its positive divisors excluding the number itself. Write a function to check if a given number is perfect or not. Examples:
Java Perfect Number : How to write Perfect Number program in Java using For Loop and While loop and find the Perfect Numbers between 1 and 100 with example.
Apr 23, 2023 · The number which is equal to the sum of its divisors is called a perfect number. Read the entered long number, assigned to the long variable n. While loop iterates until the condition (i<=n/2) is false. If the remainder of n/i=0 then add i value to the sum and increase the i value.
Jan 11, 2024 · The program defines a class PerfectNumberChecker containing a static method isPerfectNumber that takes an integer number as input and returns true if the number is a perfect number, and false otherwise. Inside the main method, replace the value of number with the desired number you want to check.
May 17, 2023 · Program to Find Perfect Number in Java. There are three ways to find the perfect number in Java: Using for Loop; Using while Loop; Using recursion in Java; Method 1: Perfect Number in Java Using For Loop. In this method, we will write a Java program that accepts an integer input from the user and checks whether the given number is a perfect ...
Jun 17, 2021 · This article on perfect number in Java explains how to implement a Java program to check if a given number is a perfect number or not.
Perfect Number Program in Java. In this post we will develop a Java program to check the number is a perfect number or not. We will try to develop a method which will give high performance, and we will also develop a Java program to find all perfect number which belongs to a given range.
