Method minBitFlips

MinimumBitFlipsToConvertNumber.java:2–10

(int start, int goal)

class Solution {
    public int minBitFlips(int start, int goal) {
        int xor = start ^ goal;
        int count=0;
        while(xor>0){ //set bits O(32)
            xor = xor & (xor-1);
            count++;
        }   
        return count;
    }
}