How to remove all elements in String array in java

Question

I would like to remove all the elements in the String array for instance   String example     Apple   Orange   Mango   Grape   Cherry       Is there any simple to do it any snippet on it will be helpful Thanks

User · Answer

Reassign again  Like example   new String  size

User · Answer

Usually someone uses collections if something frequently changes   E g       List lt String gt  someList   new ArrayList lt String gt            initialize list     someList add  Mango        someList add                 remove all elements     someList clear           empty list   An ArrayList for example uses a backing Array  The resizing and this stuff is handled automatically  In most cases this is the appropriate way

User · Answer

Just Re-Initialize the array  example   new String size   or If it is inside a running loop Just Re-declare it again     for int i 1 i lt  100 i      String example   new String size    Your code goes here

User · Answer

If example is not final then a simple reassignment would work   example   new String example length     This assumes you need the array to remain the same size  If that s not necessary then create an empty array   example   new String 0     If it is final then you could null out all the elements   Arrays fill  example  null       See  void Arrays fill Object    Object  Consider using an ArrayList or similar collection

User · Answer

example   new String example length     If you need dynamic collection  you should consider using one of java util Collection implementations that fits your problem  E g  java util List

User · Answer

list clear   is documented for clearing the ArrayList   list removeAll   has no documentation at all in Eclipse

[java] How to remove all elements in String array in java?

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