Java Collection

Java Collection toArray() Method The toArray() method of Collection Interface returns an array containing all the elements present in the collection. The…

Java Collection add() method The add() method of Java Collection Interface inserts the specified element in this Collection. It returns a Boolean…

Java Collection addAll() method The addAll() method of Java Collection Interface appends or inserts all the elements of the specified collection to…

Java Collection clear() Method The clear() method of Java Collection Interface removes all of the elements from this collection. It returns a…

Java Collection containsAll() Method The containsAll() method of Java Collection Interface returns a Boolean value ‘true’, if this collection contains all the…

Java Collection isEmpty() Method The isEmpty() method of Java Collection Interface returns the boolean value ‘true’ if this collection contains no elements.…

Java Collection remove() Method The remove() method of Java Collection Interface is used to remove a single instance of the specified element…

Java Collection removeAll() Method The removeAll() method of Java Collection Interface only removes those elements of the Collection that are contained in…

Java Collection retainAll() method The retainAll() method of Java Collection Interface keeps only those elements in this queue that are present in…

Java Collection contains() Method The contains() method of Java Collection Interface returns a Boolean value ‘true’, if it contains the specified element…