Remove blanks from String-List

Question

I have a List<String> that can contains blanks ("").

Is there a simple way to remove all blanks from list? I used this way to do so.

ListIterator<String> it = values.listIterator();
while (it.hasNext()) {
  if (it.next().equals("")) {
    it.remove();
  }
}

Thanks for help!

list entry is blank or the entry in the list contains blanks in between? — piyushj, Jun 28 '16 at 07:24
Possible duplicate http://stackoverflow.com/questions/5520693/in-java-remove-empty-elements-from-a-list-of-strings — Shravan40, Jun 28 '16 at 07:26

score 2 · Answer 1 · answered Jun 28 '16 at 07:28

2

Java 8 added an elegant removeIf method:

values.removeIf(String::isEmpty);

answered Jun 28 '16 at 07:28

Mureinik

score 0 · Answer 2 · edited May 23 '17 at 12:16

0

removeAll(Collection<?> c)

That works fine!

edited May 23 '17 at 12:16

Community

answered Jun 28 '16 at 07:24

Sheldon

score 0 · Answer 3 · answered Jun 28 '16 at 07:26

0

There is a method in List<C> Interface named as removeAll(Collections <?> c) which able to remove all elements.

it will remove all your blank String from the list

 values.removeAll(Arrays.asList("")); //remove all blank String

answered Jun 28 '16 at 07:26

Vikrant Kashyap

3 Answers3