题解 | #查找输入整数二进制中1的个数#
查找输入整数二进制中1的个数
http://www.nowcoder.com/practice/1b46eb4cf3fa49b9965ac3c2c1caf5ad
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
while (sc.hasNext()) {
int n = sc.nextInt();
String string = Integer.toBinaryString(n);
int count = 0;
for (int i = 0; i < string.length(); i++) {
if(string.charAt(i) == '1'){
count++;
}
}
System.out.println(count);
}
}
}
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