题解 | #求int型正整数在内存中存储时1的个数#

类似于转化为二进制统计二进制数中1的个数

codig

import java.util.Scanner;
public class Main{
    public static void main(String []args){
        Scanner sc = new Scanner(System.in);
        int num = sc.nextInt();
        System.out.println(findresult(num));
        sc.close();
    }
   public static int findresult(int n){
       int count =0;
        while(n>=1){
            if(n%2 ==1) count+=1;
            n /=2;
        }
       return count;
    }
}