编写一个Java应用程序，在键盘上输入一个正整数n，

Question

如题所述

Answer 1

import java.util.Scanner;
public class primeNumber {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner sc = new Scanner(System.in);
int x = sc.nextInt();
int i = 2;
if (x % 2 == 0 || x % 3 == 0 || x % 5 == 0 || x % 11 == 0) {
System.out.println(x + "是合数.");
} else {
System.out.println(x + "是素数.");
}
}
}