Java Deque: Understanding Get and Peek Last Methods | Java Collection Framework
Welcome to our Java Collection Framework tutorial series! In this video, we'll explore the `getLast()` and `peekLast()` methods of the Deque interface in Java.
*Understanding Deque Operations:*
Deque, short for Double Ended Queue, is a versatile data structure in Java that allows insertion and removal of elements from both ends. The `getLast()` and `peekLast()` methods are used to retrieve the last element of the Deque without removing it, but they differ in behavior when the Deque is empty.
*Using `getLast()`:*
The `getLast()` method throws a NoSuchElementException if the Deque is empty. It returns the last element of the Deque, or throws an exception if the Deque is empty.
*Using `peekLast()`:*
On the other hand, the `peekLast()` method returns null if the Deque is empty, instead of throwing an exception. It returns the last element of the Deque, or returns null if the Deque is empty, without removing it.
*Practical Examples:*
We'll provide practical examples demonstrating how to use these methods effectively to retrieve the last element from a Deque without removing it. You'll learn when to use `getLast()` and when to use `peekLast()` based on your specific use case.
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Deque (Get & Peek Last Methods) | Java Collection Framework
Java Source Code here:
http://ramj2ee.blogspot.com/2014/11/j...
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https://drive.google.com/file/d/1JKOd...
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