The way to test Good quantity in Java? Instance Tutorial

Whats up guys, in case you are questioning the right way to test if a given quantity is an ideal quantity or not in Java then you’ve come to the appropriate place. This is without doubt one of the fascinating coding drawback to unravel and study and enhance your coding and programming ability. In face, I realized most of my programming by fixing these type of questions. I began with easy ones like factorial, prime quantity, palindrome, anagram, string permutations earlier than I began fixing tree primarily based issues and Dynamic programming issues. These type of train not solely provide you with an opportunity to get conversant in the programming language constructs like information sort, operators, features, class and so on, but additionally assist to construct coding sense, which is nothing however your ability to transform your logic into code. 

By the best way, logic for checking if a quantity is ideal or not is contained in isPerfect( int quantity) technique so to simply unit check it as nicely. I’ve not given any JUnit check on this program however you may write a few check to test if the tactic is behaving as anticipated or not. Let me know in the event you caught, I may also share unit assessments for this program. 

import java.util.Scanner;
import java.util.concurrent.TimeUnit;

/**
 * A Java Program to test if a given quantity is ideal quantity or not. It returns true if
*  quantity is ideal, false in any other case.

 * @writer JavinPaul
 */
public class Testing {

    public static void essential(String args[]) {
        attempt (Scanner sc = new Scanner(System.in)) {
            int quantity = Integer.MAX_VALUE;
            whereas (quantity != 0) {
                System.out.println("Enter a quantity to test if it is excellent or not");

                quantity = sc.nextInt();

               boolean consequence = isPerfect(quantity);

                if (consequence) {
                    System.out.printf("%d is an ideal quantity %n", quantity);
                } else {
                    System.out.printf("%d is just not an ideal quantity %n", quantity);
                }
            }
        }
    }

    public static boolean isPerfect(int quantity) {
        int sumOfDivisors = 0;
        int copyOfInput = quantity;

        for (int i = 1; i <= copyOfInput / 2; i++) {
            if (copyOfInput % i == 0) {
                sumOfDivisors += i;
            }
        }

        return quantity == sumOfDivisors;
    }

}



Output
Enter a quantity to test if it's excellent or not
6
6 is an ideal quantity
Enter a quantity to test if it's excellent or not
28
28 is an ideal quantity
Enter a quantity to test if it's excellent or not
19
19 is just not an ideal quantity
Enter a quantity to test if it's excellent or not

Different Assets for Coding Interviews:
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P. S. – If you’re new to world of coding and information construction and algorithms and in search of some Free Algorithms programs to
enhance your understanding of Information Construction and Algorithms, you then
also needs to test this record of Free Information Construction and Algorithms Programs for Programmers.