Remove Null Value from String array in java

Question

How to remove null value from String array in java?

String[] firstArray = {\"test1\",\"\",\"test2\",\"test4\",\"\"};

I need the \"firstArra

Answer 1

Quite similar approve as already posted above. However it's easier to read.

/**
 * Remove all empty spaces from array a string array
 * @param arr array
 * @return array without ""
 */
public static String[] removeAllEmpty(String[] arr) {
    if (arr == null)
        return arr;

    String[] result = new String[arr.length];
    int amountOfValidStrings = 0;

    for (int i = 0; i < arr.length; i++) {
        if (!arr[i].equals(""))
            result[amountOfValidStrings++] = arr[i];
    }

    result = Arrays.copyOf(result, amountOfValidStrings);

    return result;
}