Removing unfilled values or null values from array of String in Java

Question

I have following String Array tmp = [null, null, null, Mars, Saturn, Mars] coming after doing the operation - allSig[d3].split(\" \"); where

Answer 1

Abstracting @az answer, this applies to any class type:

@SuppressWarnings("unchecked")
public static <T> T[] clean(T[] a) {
    List<T> list = new ArrayList<T>(Arrays.asList(a));
    list.removeAll(Collections.singleton(null));
    return list.toArray((T[]) Array.newInstance(a.getClass().getComponentType(), list.size()));
}