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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
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We can remove duplicate element in an array by 2 ways: using temporary array or using separate index. To remove the duplicate element from array, the array must be in sorted order. If array is not sorted, you can sort it by calling Arrays. sort(arr) method.
Using List.First Create an empty List of Array. Insert all elements of the array into the list. Remove all elements which is you want to remove. Convert the list back to an array and return it.
The Java ArrayList removeAll() method removes all the elements from the arraylist that are also present in the specified collection. The syntax of the removeAll() method is: arraylist. removeAll(Collection c);
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 );
ArrayList or similar collection
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