How to avoid printing empty array elements?

I know how to do this for numeric datatypes but please tell my for string arrays.

Say I have a string array of 10 elements in java. Some elements contain words but others contain NOTHING.

How do I run a for loop which prints only the non empty elements?

>Solution :

To print empty elements:

for (int i = 0; i < arr.length; i++) {
    if (arr[i] == null || arr[i].trim().isEmpty()) {
       System.out.println("Element " + i " + " is null or empty.");
    }
}

The print non-empty elements:

for (int i = 0; i < arr.length; i++) {
    if ( arr[i] != null && !arr[i].trim().isEmpty())) {
       System.out.println(arr[i]);
    }
}