Removing duplicate strings from an array?

Question

How can I remove duplicate strings from a string array without using a HashSet?

I try to use loops, but the words not delete.

StringBuffer outString = ne         


        

Answer 1

The best and most effective method is to suppose arr is the array that contains strings and can have duplicate values:

Arrays.sort(arr);
int l = 0;
for (int a = 0; a < arr.length; a++) {
    if (a == arr.length - 1)
        l++;// its a unique value
    else if (!(a[a + 1].equals(arr[a])))
        l++;// its also a unique
}
String newArray[] = new String[l];
l = 0;
for (int a = 0; a < arr.length; a++) {
    if (a == arr.length - 1)
        newArray[l] = arr[a];
    else if (!(a[a + 1].equals(arr[a]))) {
        newArray[l] = arr[a];
        l++;
    }
}