Remove Duplicate2

question:

//Follow up for "Remove Duplicates": What if duplicates are allowed at most twice?
//
//For example, Given sorted array A = [1,1,1,2,2,3],
//
//Your function should return length = 5, and A is now [1,1,2,2,3].

answer:

public class removeDuplicateTwo {

    public static int removeDuplicateTwo(int[] array) {
        if (array.length == 0) return 0;
        int j =0;
        int count =0;
        for(int i = 1;i<array.length;i++){
            if(array[j]==array[i]){
                count++;
                if (count<2){
                    j++;
                    array[j]=array[i];
                }
            }else {
                j++;
                array[j]=array[i];
                count = 0;
            }
        }
        return j+1;
    }
    
    public static void main(String[] args){
        int[] array1={1,1,1};
        int length =removeDuplicateTwo(array1);
        for (int i=0;i<length;i++){
            System.out.println(array1[i]);
        }
        System.out.println("this array length is "+length);
    }

}