File size: 406 Bytes
0284885 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | package Math_Case;
public class IsPrime {
public static void main(String[] args) {
//判断一个数是否为一个质数
System.out.println(isPrime(998));
}
private static boolean isPrime(int number) {
for (int i = 2; i <= Math.sqrt(number); i++) {
if (number % i == 0) {
return false;
}
}
return true;
}
}
|