שלוש ספרות קפולות של7 while

import java.util.Scanner;

public class Wile4 {
    public static void main(String[] args) {
        Scanner s=new Scanner(System.in);
        int num,temp=0;
        System.out.println("please give me a number");
        temp=num=s.nextInt();
        while (!(temp>=100&&temp<=999&&temp%7==0)){
            System.out.println("please give me a number");
            temp=s.nextInt();
        }System.out.println(temp);
    }
}