java 素 数

static final int SUSHU = 200;
public static void main(String[] args) throws IOException {
        for (int i = 1; i <= SUSHU; i += 2) {
if (isPrime(i)) {
System.out.println(i);
}
}

}

public static boolean isPrime(int n) {
for (int j = 2; j <= Math.sqrt(n); j++) {
if (n % j == 0)
return false;
}
return true;
}