07. How to create Singleton Class - Java Interview

#java #interviewquestions #webencyclop

In this playlist I will try to cover all the important java interview questions along with answers in very intuitive, kind of pictorial/animated way.

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In this series we will be covering all Java interview questions and answers. This is going to be comprehensive list of Java interview questions which can help experienced Java developers to prepare for an interview as well as upskilling the Java knowledge.

I would always recommend everyone to watch Durga Sir (durgasoft) videos because of extensive in depth explaination on all topics if you have more time.
But here we will try to cover important aspects of Java Programming which are always asked in interviews withing less time.

In this tutorial, we will cover one of the most commonly asked interview questions in Java: how to create a Singleton class? Singleton is a design pattern that restricts the instantiation of a class to one object, ensuring that only one instance of the class exists in the entire application.

We will begin by discussing the step-by-step process on how to create a Singleton class in Java. We will cover different approaches, including the eager initialization approach and the lazy initialization approach, and explain when to use each approach.

In addition, we will explore how to implement thread safety in Singleton classes and the different techniques for achieving it, such as the synchronized keyword and double-checked locking. We will also address common interview questions related to Singleton classes, such as how to prevent cloning and serialization issues.

Whether you are a Java beginner or an experienced developer, understanding how to create Singleton classes is essential for interviews and coding in general. So, make sure to watch this video and get prepared for your next Java interview! Don't forget to like, comment, and subscribe for more Java tutorials and interview tips.

Kywords:
Singleton class, Java interview, design pattern, instantiation, object-oriented programming, memory usage, performance, eager initialization, lazy initialization, thread safety, synchronized keyword, double-checked locking, cloning, serialization, coding skills, coding tips, Java tutorial, Coding best practices, software engineering, Java development, Java programming, Java coding, Java patterns, Java coding interview, Java coding challenges, Java coding questions, coding interviews, coding challenges, interview preparation, coding skills improvement, software engineering concepts, Java language, Software design patterns, creational design patterns, Singleton design pattern, Singleton pattern, multithreading in Java, concurrency, concurrent programming, thread safety, atomicity, synchronization, race conditions, parallel programming, thread safety issues, thread safety techniques, synchronized methods, synchronized blocks, volatile keyword, static keyword, eager initialization, lazy initialization, Singleton alternatives, design pattern principles

#java #javainterview #singleton #designpattern #multithrrading

[ideasforstartup]

Wow, great explanation. Please keep uploading the Java interview Interview series.

[javaocean]

Thank You Brother :) finally I understood volatile keyword in A Lot ....

[yuvarajsekar]

Welcome back Ankit. Happy to see your tutorials after a long break.🤩

[ranjitharuchamy]

Really nice explanation, however I have one query on this. Why can't we have single if statement that is inside the synchronized block to validate the object? Why do we need to have 2 levels of check?

[parambharti]

Good explanation. Please keep uploading Thanks in advance.

[dgcrush]

Very helpful... please continue the series

[Awcator]

Thanks. One thing i did not understand is 5:55 just remove first if block. It should work right?

[aditidhiman]

Hi, can we not use this directly : synchronized public static Singleton getInstance()

[Itsarpitgupta]

This is very good explanation but still I'm interested to see the other method to create the singleton class which is full proof.

[sridharmurari]

Ankit one basic question I have, New keyword creates a obj in heap and constrictor used for initialization of values ? so for obj creation with NEW(space in heap) constructor is mandetory?

[jilanbasha]

Hi sir, please make a video on immutable class

[atulvairale]

U are amazing but why u stopped uploading videos bro