How can I remove duplicate elements from a given array in java without using collections

Question

I have an array elements like this:

int arr[] = {1,1,2,2,3,3,4,4};

I want to remove the duplicate elements from. Searched on the internet

Answer 1

this is the finest solution to remove duplicate element without apply sorting and collections.

public static int[] removeElm(int arr[]) {
    int[] tempArr = new int[arr.length];
    int j = 0;
    tempArr[j] = arr[0];
    for (int i = 1; i < arr.length; i++) {
        boolean check = false;
        for (int k = 0; k < j + 1; k++) {
            if (tempArr[k] != arr[i]) {
                check = true;
            } else {
                check = false;
                break;
            }
        }
        if (check) {
            tempArr[++j] = arr[i];
        }
    }
    return tempArr;
}