Sum of ones

//package week5.monday;

import java.math.BigInteger;
import java.util.Scanner;

public class BitCoun {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		BigInteger number = BigInteger.ZERO;
		number = new BigInteger(sc.nextLine());
		Integer oneBit = 0;
		 
		for(BigInteger i =BigInteger.ONE; i.compareTo(number) == 0 || i.compareTo(number) == -1; i = i.add(BigInteger.ONE)) {
			String binary = i.toString(2);
			for(int bitChar =0 ; bitChar < binary.length(); bitChar++) {
				if(binary.charAt(bitChar) == '1') {
					oneBit++;	
				}	
			}
		}
		System.out.println(oneBit);
		sc.close();
	}
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED

Test 11

Verdict: TIME LIMIT EXCEEDED

Test 12

Verdict: TIME LIMIT EXCEEDED

Test 13

Verdict: TIME LIMIT EXCEEDED

Test 14

Verdict: TIME LIMIT EXCEEDED

Test 15

Verdict: TIME LIMIT EXCEEDED

Test 16

Verdict: TIME LIMIT EXCEEDED

Test 17

Verdict: TIME LIMIT EXCEEDED

Test 18

Verdict: TIME LIMIT EXCEEDED

Test 19

Verdict: TIME LIMIT EXCEEDED

Test 20

Verdict: TIME LIMIT EXCEEDED

Test 21

Verdict: TIME LIMIT EXCEEDED