perfect numbers
i'm trying to get this code to test if a number is a perfect number.
for example, six would be a perfect number because all its factors(1,2,3 ) add up to six.
but i'm getting an error message.
does anyone know what i need to change? thanks
class PerfectNumbers{
publicstaticvoid main(String[] args){
test(28);
test(26);
test(6);
}
staticvoid test(int num){
int elements = 0;
for(int y = 1; y <=num; y++)
if(num % y == 0) elements+=1;
int[] factors =newint[elements];
for(int y = 1; y <=num; y++){
int p = 0;
if(num % y == 0) factors[p++] = y;
}
for(int y = 0; y < factors.length; y++){
int sum = 0;
sum = sum + factors[y];
}
if(sum == num) System.out.println(num+"is a perfect number");
else System.out.println(num+"is not a perfect number");
}
}
symbol : variable sum
location: class PerfectNumbers
if(sum == num) System.out.println(num+ "is a perfect number");
^
1 error
