Display Certain Prime Number in C++

Some times ago my lecturer give me a question how to display prime number in any language. Then I answer it on Matlab programming. I'm not sure with that answer true or false. Before it, my job tester when I applied a vacancy as a programmer, he asked me how to display prime number, but in Java programming language. Again, I can't answered it :-( .

Just in my curious, I try to display it on C++ language program. Awesome, not only just prime number which I can display, but also number of range which I want to display on that program also able.


I have tried this code at Dev C++, and it was running well.

#include <iostream> 
using namespace std;

int main() {
    int n, isprime;
    cout << "Masukkan range angka : ";
    cin >> n;
    for (int i=2; i<= n; i++) {
        isprime = 1;
        for (int j=2; j<=i; j++) {
            if(i==j)
               continue;
            else if(i%j == 0)
               isprime = 0;
        }
        if(isprime)
          cout << i << ", ";
    }
    system ("pause");
    return 0;
}