Java LinkedBlockingDeque peekLast() Method

The peekLast() method of LinkedBlockingDeque class retrieves this deque's last element, but doesn't remove it. The method returns null if this deque is empty.

Syntax:

Parameters:

Specified By:

The peekLast () method of LinkedBlockingDeque class is specified by peekLast() method in interface Deque<E>.

Return Value:

The peekLast () method returns this deque's tail, and returns null if this deque is empty.

Example 1

import java.util.concurrent.LinkedBlockingDeque;
public class LinkedBlockingDequePeekLastExample1 {
    public static void main(String[] args) {
        int capacity =20;
        LinkedBlockingDeque<Integer> deque = new LinkedBlockingDeque<Integer>(capacity);

        deque.add(412);
        deque.add(556);
        deque.add(654);
        deque.add(732);
        deque.add(879);
        deque.add(943);
            
        System.out.println("Last element of deque  : "+deque.peekLast());
        System.out.println("Deque after peekLast() : "+deque);
    }
}

Test it Now

Output:

Last element of deque  : 943
Deque after peekLast() : [412, 556, 654, 732, 879, 943]

Example 2

import java.util.concurrent.LinkedBlockingDeque;
public class LinkedBlockingDequePeekLastExample2 {
    public static void main(String[] args) {
        int capacity =20;
        LinkedBlockingDeque<String> deque1 = new LinkedBlockingDeque<String>(capacity);
        LinkedBlockingDeque<String> deque2 = new LinkedBlockingDeque<String>(capacity);
        
        deque1.add("Keshav");
        deque1.add("Naveen");
        deque1.add("Neha");
        deque1.add("Hitesh");
        deque1.add("Surbhi");
        deque1.add("Nitin");

        deque2.add("Ankit");
        deque2.add("Megha");
        deque2.add("Janak");
        deque2.add("Riya");    
        
        System.out.println("Last element of deque1  : "+deque1.peekLast());
        System.out.println("Deque1 after peekLast() : "+deque1 +"\n" );
        
        System.out.println("Last element of deque2  : "+deque2.peekLast());
        System.out.println("Deque2 after peekLast() : "+deque2);
    }
}

Test it Now

Output:

Last element of deque1  : Nitin
Deque1 after peekLast() : [Keshav, Naveen, Neha, Hitesh, Surbhi, Nitin]

Last element of deque2  : Riya
Deque2 after peekLast() : [Ankit, Megha, Janak, Riya]

Example 3

import java.util.concurrent.LinkedBlockingDeque;
public class LinkedBlockingDequePeekLastExample3 {
    public static void main(String[] args) {
        int capacity =20;
        LinkedBlockingDeque<String> deque = new LinkedBlockingDeque<String>(capacity);
        
        deque.add("Employee1");
        deque.add("Employee2");
        deque.add("Employee3");
        deque.add("Employee4");
        deque.clear();
                
        System.out.println("Last element of deque  : "+deque.peekLast());
        System.out.println("Deque after peekLast() : "+deque +"\n" );
    }
}

Test it Now

Output:

Last element of deque  : null
Deque after peekLast() : []

Next TopicJava Linkedblockingdeque

← prev next →

Latest Courses

We provides tutorials and interview questions of all technology like java tutorial, android, java frameworks

Contact info

G-13, 2nd Floor, Sec-3, Noida, UP, 201301, India

[email protected].

Python

AI, ML and Data Science

Java

B.Tech and MCA

Web Technology

Software Testing

Technical Interview

Java Interview

Web Interview

Database Interview

Company Interviews

Java Tutorial

Control Statements

Java Object Class

Java Inheritance

Java Polymorphism

Java Abstraction

Java Encapsulation

Java Array

Java OOPs Misc

Java String

Java String Methods

Java Regex

Exception Handling

Java Inner Class

Java Multithreading

Java Synchronization

Java Networking

Java Applet

Java Reflection

Java Conversion

Java JDBC

RMI

Internationalization

Java Array Class

Java AtomicInteger Class

Java AtomicLong Methods

Java Authenticator

Java BigDecimal class

Big Integer Class

Java Boolean class

Java Byte Class

Java Class

Java Collections class

Java Compiler Class

CopyOnWriteArrayList

Java Math Methods

LinkedBlockingDeque

Java Long class

LinkedTransferQueue

Java List

Java MulticastSocket

Java Number Class

Java Phaser Class

ArrayList Methods

Java Thread Methods

Java Projects

Java Programs

Java Misc

Java Date Class

Java ListIterator Class

Java NIO Tutorial

HttpURLConnection

Java Deque

Java HttpCookie Class

Java URL class

Java List Methods

Java Vector class

Java Collection Methods

Java Socket Class

Java Executors

Java LinkedBlockingDeque peekLast() Method

Syntax:

Parameters:

Specified By:

Return Value:

Example 1

Example 2

Example 3

Latest Courses