Java 8 Streams | Optional Usage and Best Practices | JavaTechie

This tutorial will guide you java 8 Optional and its usecase with stream API
Content :
What is Optional ?
why Optional ?
When to use Optional ?

#javatechie #java8 #Stream

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[meevizagabbai]

Directly to the point, no lag, crisp & clear. Keep sharing the content like this 😊👍. Now I know about Optional class. Thanks :⁠-⁠)

[abhilashpatel]

showing documentation first is a solid move. solid tutorial. thanks

[kumarsaroj]

you are a superb teacher.... I wish I could have come across your channel few years ago... I would be at a different level of java developer.
I find all your videos quite engaging, crisp and informative.
Keep sharing your knowledge with us.

[sowjanyapeddiraju]

thank you very much for the clear explanation .your videos make the concept clear.

[seyhaseng]

Thank you for the java course
You are legendary

[nirmesh]

As usual awesome explanation. Great work Bro!

[amolghule]

Thanks for such easy and wonderful explanation...!

[diegoramos]

Thank you, Only thing is I don't see any difference against checking 200 fields with null check, now this would be checking 200 fields with Optionals/ifPresent etc...

[vikasbaghel]

You can use Ctrl + d shortcut to copy paste any line.

[LwP]

There are many good teachers. But you are one of the best among them.👏👏👏

[rishiraj]

Please make the ads in the beginning of your videos skippable.

[AvinashKumarInsights]

1. Here also need to check whether value is present or not using isPresent() then what is the use of this for that if statement is also required.
2.in case or orelse, i dont want to set some value if is it null then we need to checked by ispresent() ...so how we can say that its resolved our null check problem?

[Vogel]

It's worth to point out that any statement inside ".orElse()" is ALWAYS executed.
for example: try calling a function with a print inside ".orElse()".
The print statement will be executed regardless of the whether the object is null or not.

This might be cause a problem if in the ".orElse()" is an expensive function call (like a database query or a network request).
So, it's recommended to use ".orElseGet()" in that case.

[praveenreddy]

Hi master, very much clear but still we are checking so many conditions for null checks, where actually it's used better than checking the null check in java7

[overview]

@21:00 best practice, watch this video completely

[vaibhavkalgude]

If we use Optional.of() when we know the object is not null, then what is the purpose of using it?

[ramvillagetraveller]

Thanks for posting .. needed content...you explains very well..👍

[supun_sandaruwan]

Great content. Tricky examples... Thank you so much sir ❤❤

[rk]

Ways to create Optional class
empty
of
ofNullable

[sethunest]

Hi @java Techie, Is java is purely object oriented programming?