Singleton Pattern – Design Patterns (ep 6)

Video series on Design Patterns for Object Oriented Languages. This time we look at the Singleton Pattern.

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[mphophantshang]

Boss: My wife is cheating on me
Programmer: One man's constant is another man's variable....

[mohammadnaseri]

One of the best series I have ever watched. Keep going on dude!

[Tapuck]

Your editing is absolutely fantastic. The stream of knowledge never stops or slows down.

[dalitsobotha]

I love the way you teach. Your explanations are thorough and the way you speak is very captivating. Straight to the point, you are not a time waster.

[mikhailbisserov]

That's a good video. Especially the code smell part. I would add though that to ensure single instance you also need to wrap instance creation with lock (Monitor), because nowadays threads are used left and right. In fact, "double-checked locking" (that's a pattern) should be used

if (instance == null) {
lock (_lockObject) {
if (instance == null) {
instance = new Singleton();
}
}
}

[IamCagedAnimal]

U, my good Sir are born for teaching, really nice and simple explanation for everyone to understand. Keep up the good job!
cheers

[SaurabhGuptaicecool]

This series is greatest I've ever encountered on youtube on any topic, period.

[karzo]

You are criminally underrated. Deserves more followers. Top notch.

[ruvishkarathnayake]

The way you teach these lessons is perfect. This is a good example for my lecturers how to teach these stuff.

[sammclaren]

That's what I call 'in-depth explanation'! Awesome work.

[ckmedia]

This is why I love the internet, good videos with good info. My man!

[jaycelila]

don't understand why this video is not popular than it has to be. You are amazingly well explaining abstract concepts so dumb like me can understand. Thanks.

[prapulkrishna]

You are one of the best teachers on the planet. Thanks for the videos.

[seguncodes]

The best explanation of Singleton pattern i have come across

[hoelefouk]

If there is anything comparable to your teaching skills, it's your skills to have amazing intros. Intro for this particular video is simply genius. Your intros are so underrated man!

[khadwen]

Love these videos, thanks Christopher! The Head First series is great.

[DAS-jkmw]

This is the best explanation of a Singleton pattern ever !!

[sushantkumar]

The best playlist (on IT/Sw) I have ever watched on YouTube

[karthikkeyan]

Just so we are clear on all levels, the demonstrated example isn't thread safe, which mean we can have multiple instances of the Singleton class by using different threads. You need the "lock"ing object to secure the thread

[vineetherenj]

Me: Let me learn about Singleton pattern.
Christopher: never use singleton pattern.
Me: -_-