The add(E element) method of HashSet inserts the specified element into the set. It returns false if the set already contains the specified element otherwise returns true. Syntax Parameters e is the element to insert into set Program 1 Output Set elements: [50, 20, 40, 10, 30] Program 2 Output Read more…
The add(E element) of LinkedList appends the specified element at the end of the list. We can also add an element at a specific position using the add(int index, E element) method. Syntax 1 Parameters e is the element to be added to the linked-list Return Value It returns true Read more…
The addFirst(E element) method of LinkedList appends the specified element at the beginning of this linked list. It does not return anything. Syntax Parameters e is the element to be added to the linked-list Return Value It doesn’t return anything Program Output Linked List elements: [5, 7, 9, 11] Linked Read more…
The addLast(E element) method of LinkedList appends the specified element at the end of this linked list. It does not return anything. Syntax Parameters e is the element to be added to the linked-list Return Value It doesn’t return anything Program Output Linked List elements: [5, 7, 9, 11] Linked Read more…
The clear(E element) method of LinkedList removes all the elements from this list. The linked list becomes empty as a result of this call. Syntax Parameters This method doesn’t take any parameter. Return Value It does not return anything Program Output Linked List elements: [5, 7, 9, 11] Linked List Read more…
The contains(E element) method of LinkedList checks if the LinkedList contains the specified element or not. It returns true if the linked list contains the specified element. Syntax Parameter e is the element to check in the linked-list Returns Value It returns true if the linked-list contains specified element otherwise Read more…
The element() method of LinkedList retrieves but does not remove the first element of this linked list. It throws NoSuchElementException if the linked list is empty. Syntax Parameters It doesn’t take any parameter Return Value It returns the first element of this linked list. Exception throws NoSuchElementException if the linked Read more…
The get(int index) method of LinkedList returns the element at the specified index in this list. It throws IndexOutOfBoundsException if the specified index is out of range. (index < 0 || index >= size()) Syntax Parameters index is the position of the element need to return Return Value the element Read more…
The getFirst() method of LinkedList returns the first element of this linked list. It throws NoSuchElementException if this linked list is empty. Syntax Parameters it doesn’t take any parameter Return Value It returns the first element in this linked-list Exception throws NoSuchElementException if this linked-list is empty Program 1 Output Read more…
The getLast() method of LinkedList returns the last element of this linked list. It throws NoSuchElementException if this linked list is empty. Syntax Parameters it doesn’t take any parameter Return Value It returns the first element in this linked-list Exception throws NoSuchElementException if this linked-list is empty Program 1 Output Read more…