Why does Java allow arrays of size 0?

Question

Arrays in java are fixed in length. Why does Java allow arrays of size 0 then?

String[] strings = new String[0];

Answer 1

It signifies that it is empty. I.e. you can loop over it as if it had items and have no result occur:

for(int k = 0; k < strings.length; k++){
   // something
}

Thereby avoiding the need to check. If the array in question were null, an exception would occur, but in this case it just does nothing, which may be appropriate.