retainAll Method

Retains only the elements in this list that are contained in the specified collection (optional operation). In other words, removes from this list all the elements that are not contained in the specified collection.

Syntax

public boolean retainAll( 
   java.util.Collection<?> c
)

Parameters

c: collection containing elements to be retained in this list

Return Value

true if this list changed as a result of the call

Exceptions

Exception	Description
java.lang.UnsupportedOperationException	if the `retainAll` operation is not supported by this list
java.lang.ClassCastException	if the class of an element of this list is incompatible with the specified collection (optional)
java.lang.NullPointerException	if this list contains a null element and the specified collection does not permit null elements (optional), or if the specified collection is null

Reference

ImGearLayerArray Class
ImGearLayerArray Members
remove(Object) Method
contains Method