Codility: Binary Gap

Ex1_BinaryGap.java

class Solution {
	public int solution(int N) {
		String binN  = Integer.toBinaryString(N);
		int counter = 0;
		int maxCounter = 0;
		for (int i = 1; i < binN.length() - 1; i++) {
			if (binN.charAt(i) == '0' && binN.charAt(i-1) == '1') {
				counter = 1;
				for (int j = i+1; j < binN.length(); j++) {
					if (binN.charAt(j) == '0')
						counter++;
					else {
						if (maxCounter < counter)
							maxCounter = counter;
						counter = 0;
						i = j;			
						j = binN.length();
					}
				}
			}
		}
		return maxCounter;
	}
}