Singleton Design Pattern for Beginners with easy examples |
With immense pleasure, I am happy to share the first episode of my "Design Patterns for Beginners" series. In this video, I explain the "Singleton Design Pattern" in great detail. I cover 5 unique ways to implement the Singleton pattern, and I explain which approach to use in different cases. I also provide detailed code logic to help you understand the concepts better. At each step, I talk about the "why" behind the pattern, which is something that most other content creators skip.
I am confident that after watching this video, you will have a deep understanding of the Singleton design pattern. This knowledge will be valuable to you, whether you are a beginner or an experienced engineer. It will help you to design better software, and it will also help you to accelerate your career.
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You will find the answers to below questions in the video
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✒ What is the Singleton design pattern?
✒ Why is the Singleton design pattern useful?
✒ What are the different ways to implement the Singleton pattern?
✒ When should you use each implementation?
✒ What are the pros and cons of each implementation?
✒ What are some common mistakes to avoid when implementing the Singleton pattern?.
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Chapters
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0:00 Hello from SDE V
1:18 Definition of Singleton Design pattern
2:39 5 ways Implementation to Singleton
2:54 Eager Implementation
5:20 Static Block Implementation
6:40 Lazy Implementation
8:20 Thread Safe Implementation
9:53 BillPugh Implementation
11:30 Next video Factory Design Pattern
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Пікірлер: 35
I love the way that you simplifies each topic by giving us some inner confidence to learn actual system design independently.
maaza aagaya
Very nice explanation, I have seen a lot of videos on singleton but never got to know it such depth.
@CodeWithSunchitDudeja
Жыл бұрын
Glad it was helpful!
Awesome explanation
@CodeWithSunchitDudeja
Жыл бұрын
Glad you liked it
Really Enjoyed ❤ One more way if we are using java could be using an enum which guarantees that only one instance of the enum exists in the system at any given time Similar like following example public enum Logger { INSTANCE; public void log(String message) { System.out.println(message); } } public class LoggerExample { public static void main(String[] args) { Logger logger = Logger.INSTANCE; logger.log("This is a log message."); } }
very nice explanation, its a great content😍😍
@CodeWithSunchitDudeja
Жыл бұрын
Thanks a lot 😊 Please share it in your community
@abhishekkumarroy2815
Жыл бұрын
Sure
Thank You bhaiya!!
@CodeWithSunchitDudeja
Жыл бұрын
Thanks :)
Sir is amazing 😍
@CodeWithSunchitDudeja
Жыл бұрын
Thanks a lot 😊
OP Sir😍
@CodeWithSunchitDudeja
9 ай бұрын
Thanks Saurabh
Thankyou sir its a great content
@CodeWithSunchitDudeja
Жыл бұрын
thanks Rohan
Thanks a lot perfect explanation sir. Cant wait to for the next pattern.
@CodeWithSunchitDudeja
Жыл бұрын
So nice of you, please promote it in your group
clear and concise . Rockstar
@CodeWithSunchitDudeja
Жыл бұрын
Thanks Harish
too good sir, loved it. The way you explain nobody can.
@CodeWithSunchitDudeja
Жыл бұрын
Thanks a ton
Sir pls a very small request pls daily do leetcode questions it was the time that when I became consistent because of your videos
@CodeWithSunchitDudeja
Жыл бұрын
As soon as possible, point noted.
@Harjotse
Жыл бұрын
@@CodeWithSunchitDudeja Thank you sir
I have read an article on singleton and GoF singleton pattern in which it was told that implementing a singleton class using GoF design pattern way violates architectural guidelines as we can make a network call from presentation layer only, which is not very good. Can you talk about this please
Didn't understand the BillPugh design pattern completely how it overcome the scenario where multiple threads call at the same time
@CodeWithSunchitDudeja
11 ай бұрын
Can you tell me which part you got confused, Static inner class?
@tanishqmahendrasaini3764
11 ай бұрын
@@CodeWithSunchitDudeja Yes like how static inner class solves overcomes the scenario where multiple threads are trying to get the instance and each thread end up getting a new instance rather than each should have got the a single instance. Also I was thinking that static method could be a option similar to static inner class, I tried to find difference between these two static inner class and static method but didn't find anything relevant to the singleton example, one thing I assumed is that the reason for choosing static inner class is could be that its thread safe otherwise static method would be easily implemented and understandable. Please let me know if I made the wrong assumption.
I dont know JAVA, should I learn JAVA first before starting with this series ?
@CodeWithSunchitDudeja
Жыл бұрын
No, not mandatory, Basic of Java are very similar to C++. I have made it such a way that everyone will understand. However, there could be cases where things are java specific, I will highlight them from next time.
Sir please teach in English 🙏
@CodeWithSunchitDudeja
Жыл бұрын
Ok next time