Chapter 6, Problem 5PE

Explanation of Solution

Program:

File name: “Perfect.java”

//Import necessary header files

import java.util.*;

//Define a class named Perfect

public class Perfect

{

    //Define main method

    public static void main(String args[])

    {

        //Declare a variable

        int i;

        //Print the message

System.out.println("The perfect numbers in the range 1 to 1000 are:");

        //For loop to print the perfect numbers between 1 and 1000

        for(i = 1; i <= 1000; i++)

        {

            //Declare variables and initialize the value

            int sum = 0, j;

//For loop is executed until the value of j exceeds i

            for(j = 1; j < i; j++)

...