Question

Write a program to check whether the
inputted number is Perfect Number or
not, print Perfect if it is a Perfect
Number otherwise print Not Perfect.
A PERFECT number is a positive
integer that is equal to the sum of its
positive divisors, excluding the number
itself.
For example, 6 can be divided by 1, 2
and 3, and also the sum of 1 + 2 + 3 =
6, so 6 is a perfect number.

Answer 1

Answer:

import java. util. *;

class number

{

public static void main (string args [] )

{

scanner sc = new scanner ( system. in) ;

system. out. print ( "Enter a number :- ") ;

int a = sc.next () ;

int i, s=0;

for( i = 1 ; i <= a ; i++ )

{

if (a%i=0)

{

s=s+1;

}

}

if (s==a)

{

system.out.println(" It is a perfect number ") ;

}

else

{

system.out.println(" It is not a perfect number ") ;

}

}

}