Java Tutorial - Passing by Value (Primitive Data Types)

Passing by Value (Primitive Data Types)

Hi Everyone,

I am continuing on with my video series on Java programming for beginners. In this video, I discuss a common difficulty that every beginner Java programmer encounters - and that is - does Java pass variables to method parameters by value or by reference. This issue is known as passing by value versus passing by reference.

Java *always* passes by value and never by reference. That is to say, Java always passes a copy of a variable to a method parameter, and never a reference to the original variable itself.

Hence, any changes made to the copy of the variable in the method does not affect the original variable in any way. This is always true for primitive data type in Java. It is a little more complex when dealing with objects in Java and I will provide a video that focuses explicitly on that scenario and explain in detail what happens when objects are passes as parameters.

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[alayah]

Thank you so much for your explanation! I have finally understood what "pass by value" means. You are an amazing teacher!!

[constantincrintea]

The best explanation I've ever heard. Thanks a lot !!

[mohammedviso]

Finally I understand this Thanks a lot

[snipsreckless]

OMGGG this is even better than the text book!!! THANK YOU SO MUCH!!!!

[rgt]

Amazing explanation!!
Even a school kid can now understand what "pass by value" means in Java :)
Thanks for the video!

[angrybunny]

This is the only video i found on youtube which explain this concept clearly

[vibhutishankar_]

Awesome! you explained in the best it could've been explained. Loved it.

[gahramanovanar]

explained better than in original java tutorial. thank you

[OradeLEGORomania-cxun]

A little bit old, but it helped me a lot! Thank you
Martin O'Connor!

[estherwilliams]

Wow. you just BLEW MY MIND. I have been studying and studying this and just didn't get it until I saw YOUR tutorial. Thank you so much. I felt so stupid. I just was not getting it. I didn't understand at all. now I understand everything.Thanks To You.

[jobbaffet]

Straightforward, really good explanation! :)

[AhmedHadiPADI_scuba_instructor]

love your mic and you're just awesome dude!

[pecan]

tks, this got asked during my interview

[ramanpalyal]

Literally, I have gone through many of videos, blogs but did'nt get the real understanding that's HOW to actually use PASS BY VALUE.
Sir, I am very thankful to you .😇🤩One Request Sir, please share your thoughts on development skills we need for JAVA developer for jobs.

[bishwasmishra]

Why does a copy of primitive variable have different address, but the copy of an object has same address?

[thituyetpham]

Still waiting your Java course to continue 🥰

[andreslebon]

Thanks for this great video, but you should drink some water before recording 😂
😂