Java Deque addAll() Method22 Mar 2025 | 2 min read The addAll() method of Java Deque Interface is used to add all the elements in a specified collection at the end of the deque. Specified by:
Syntax:Parameter:The above method consists of only one parameter:
Return:The above method returns true if the given deque is changed. Example 1Output: The marks for student1 : 28 25 26 The marks for student2 : 22 19 20 The total list for the marks : 28 25 26 22 19 20 Example 2Output: Enter the name of Employees for List 1: Sam Ram Priya Urvashi Enter the name of Employees for List 2: Ravi Rita Yashika Lavish The final list for the employees is given as : Sam Ram Priya Urvashi Ravi Rita Yashika Lavish Next TopicJava Deque |
Java Deque Method The method of Java Deque Interface is used to insert the specified element at the front of the deque . Syntax: void addFirst(E e) Parameter: The above method consists of only one parameter: The element 'e' that needs to be added. Return: NA Throw: IllegalStateException- If the elements...
2 min read
Java Deque Method The method of Java Deque Interface is used to insert the given element in the front of the deque unless and until it violates the capacity restrictions. While using a capacity restricted deque , the above method is used for addFirst(E)...
2 min read
Java Deque Method The method of Java Deque interface is used to retrieve and removes the last element of the given deque. The above method is different from the pollLast() method such that it throws an exception if the given deque is empty. Syntax: public E...
2 min read
Java Deque Method The method of Deque interface is used to retrieve and removes the first element of the given deque. The above method is different from the pollFirst() method such that it throws an exception if the given deque is empty. Syntax: public E Parameter: NA Return: The...
2 min read
Java Deque Method The method of Java Deque interface is used to retrieve and remove the head of the deque. The method may differ by poll() method only in one case that it throws an exception if the given deque is empty. Specified by: remove in...
3 min read
Java Deque Method The method of Java Deque Interface returns an iterator for the elements in the specified deque in a reverse sequence. The elements will return in a sequential order from first(head) to the last(tail). Syntax: Iterator<E> Parameter: NA Return: The above method returns an iterator for the...
1 min read
Java Deque Method The method of Deque interface is used to push an element on the stack represented by the given deque. The above method is equivalent to addFirst() method. Syntax: void push(E e) Parameter: The above requires only one parameter: The element 'e' that needs to be...
1 min read
Java Deque Method The method of Java Deque Interface is used to return an iterator for the elements in the deque in a proper sequence. The elements are returned in a order from first(head) to last(tail). Specified by: iterator in interface Collection<E> iterator in interface Iterable<E> Syntax: Iterator <E>...
1 min read
Java Deque Method The method of Java Deque Interface returns true if the deque contains the specified element. Specified by: contains in interface Collection<E> Syntax: boolean contains(Object o) Parameter: The above method consists of only one parameter: a.) The element 'o' which is already present in the deque and is tested. Return: The...
2 min read
Java Deque Method The method of Java Deque Interface retrieves but does not remove the first element of the given deque. The above method differs from peekFirst only in one way that it throws an exception if the deque is empty. Syntax: public E Parameter: NA Return: The...
1 min read
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