Perfect Number Checker

Code Box
// Program to check input number is perfect number or not class perfect { public static void main(String a[]) { int i,j,k,sum,mul; sum=0; mul=1; k=Integer.parseInt(a[0]); for(i=1;i<k;i++) { if(k%i==0) { sum=sum+i; mul=mul*i; } } if(mul==sum && k==sum) { System.out.println("perfet number"); } else { System.out.println("not perfect number"); } } }
Download Link: