fruit into baskets

class Solution {
    public int totalFruit(int[] fruits) {
        int first=fruits[0];
        int second =-1;

        int ans=1;
        int l=0;
        int r=0;
        for(int i=1;i<fruits.length;i++){
            if(fruits[i]==first || second==-1 || fruits[i]==second){
                if(fruits[i]!=first && second==-1)
                {
                    second = fruits[i];
                }
                r++;
                ans=Math.max(ans, r-l+1);
            }else{
                int j=r;
                while(j>l && fruits[r]==fruits[j]){
                    j--;
                }

                first=fruits[r];
                second=fruits[i];

                l=j+1;
                r=i;
            }
        }
        return ans;
    }
}