Program for checking a Number is Perfect Number or Not in C, Java and C#

Program for Checking a Number is Perfect Number or Not :-

Program in C :-

#include<stdio.h>
#include<conio.h>
void main()
{
int num,a,num2=0,num3;

printf("Enter a Number \n");
scanf("%d",&num);

num3=num;

while(num>0)

{

a=num%10;

num2=num2+a;

num=num/10;
}

if(num2==num3)

printf("Number is Perfect");

else

printf("Number is not Perfect");
getch();
}

Program in Java :-

public class TestNumber
{
public sttaic void main(String args[])
{
int num,a,num2=0,nu3;
System.out.println("Enter a Number");
Console con=System.console(System.in);
num=Integer.parseInt(con.readLine());

num3=num;

while(num>0)

{

a=num%10;

num2=num2+a;

num=num/10;
}

if(nun2==num3)
System.out.println("Number is Perfect");
else
System.out.println("Number is not Perfect");
}
}

Program in C# :-

public class Test
{
public static void Main()
{
int num,a,num2=0,num3;
Console.WriteLine("Enter a Number");
num=Integer.Parse(Console.ReadLine());

num3=num;

while(num>0)

{

a=num%10;

num2=num2+a;

num=num/10;
}

if(num2==num3)
Console.WriteLine("Number is Perfect");
else
Console.WriteLine("Number is not Perfect");
}
}

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