Starting from Java 8, HashMap in Java does maintain the insertion order for its key-value pairs. Prior to Java 8, the order of elements in a HashMap was not guaranteed. This change was introduced as an implementation detail in Java 8 and later became part of the Java language specification in Java 12.
Thank you. Please go through this RUclips Playlist link bit.ly/3frBpQZ which contains top interview questions and answers for SDET/software Testing/QA interviews.
Hi Mishra, Thanks for the amazing series. I think there is a small mistake regarding StringBuilder and StringBuffer classes w.r.t 2nd point: As StringBuilder methods are not thread-safe, multiple threads are allowed on operate on StringBuilder methods. (mult-threaded env) As StringBuffer methods are thread-safe, at a time only one thread is allowed to operate.
Thank you . StringBuffer is thread-safe meaning that they have synchronized methods to control access so that only one thread can access StringBuffer object's synchronized code at a time. StringBuffer objects are generally safe to use in a multi-threaded environment where multiple threads may be trying to access the same StringBuffer object at the same time. StringBuilder is not synchronized so that it is not thread-safe. By not being synchronized, the performance of StringBuilder can be better than StringBuffer. If we are working in a single-threaded environment, using StringBuilder instead of StringBuffer may result in increased performance. This is also true of other situations such as a StringBuilder local variable where only one thread will be accessing a StringBuilder object.
Even after 2 years its worth, thanks🙏
It's very helpful for who want to change the job.
Thank you.
Very Good Video Sir. Simple way you explain java
So nice of you
Thanks for making this video which covers most important topics which are most needed to know for core java interview 😊
Thanks for your work which helps lot of people like me
Nice, Thank you for sharing your time and knowledge!!
Welcome !!keep learning new things 😊
Great video, only problem is I had to ice my eyes after watching it, please go for other background colors that are kinder to our eyes.
Thank you for the feedback. I have changed the color in all my new videos.
😅
Yes color is an issue here
So much red😢😢
covered all the topics , Thanks:)
Hi sir, The content is really good, but the background of the video should be white or other instead of red.
Thank you 😊 I have changed it in new videos.
Awesome explanation👍🙂
Thank You!!!!! Keep learning new things :-)
Very useful, thnx so much!!!!
Glad to hear that!! Keep learning and sharing with your friends 😊
Ques 23- small mistake -- Hashmap doesn't maintain insertion order.
Starting from Java 8, HashMap in Java does maintain the insertion order for its key-value pairs. Prior to Java 8, the order of elements in a HashMap was not guaranteed. This change was introduced as an implementation detail in Java 8 and later became part of the Java language specification in Java 12.
@@TechTestTutor source?
perfect compilation , very helpful . thankyou so much.
Welcome 😊 I am glad it was helpful!
Y55
Excellent explaination and research on the topics
Glad to hear that!! Keep learning and sharing with your friends 😊
thanks for creating this series of questions it meen a lot , while preparing interview in short period of time
You are welcome !!!
nice content but pls don't put red background in your video. sometimes it irritates . go with neutral colors
Thank You for the feedback. I have taken care of it in my newly uploaded videos.
Hi,
Q14 interface can only extend another interface is this correct? Because on the top of that written interface can extend many interfaces
Thank you :)
Important questions
Good one .. add Real time scenarios for automation testing questions.
Thank you. Please go through this RUclips Playlist link bit.ly/3frBpQZ which contains top interview questions and answers for SDET/software Testing/QA interviews.
Very usefull information will attending before interview
Thank you!! keep learning and sharing with your friends 😊
Please make a video section on Java programs for automation testing
Sir can you please make video on java oops concept use for selenium testing.
sure, I will make a video on that in next few days.
Good video...can you create Tutorila on Rest assured Framework
Thank you. It is already there, please visit Playlist link bit.ly/2BY0vHu
17:00 bookmark
Thank you so much
You are welcome!!!!! Keep learning new things :-)
You made really nice videos with lists, I'm going to watch all of them, thank you.
I am glad you like them!
Hi Mishra, Thanks for the amazing series.
I think there is a small mistake regarding StringBuilder and StringBuffer classes w.r.t 2nd point:
As StringBuilder methods are not thread-safe, multiple threads are allowed on operate on StringBuilder methods. (mult-threaded env)
As StringBuffer methods are thread-safe, at a time only one thread is allowed to operate.
Thank you .
StringBuffer is thread-safe meaning that they have synchronized methods to control access so that only one thread can access StringBuffer object's synchronized code at a time.
StringBuffer objects are generally safe to use in a multi-threaded environment where multiple threads may be trying to access the same StringBuffer object at the same time.
StringBuilder is not synchronized so that it is not thread-safe. By not being synchronized, the performance of StringBuilder can be better than StringBuffer.
If we are working in a single-threaded environment, using StringBuilder instead of StringBuffer may result in increased performance. This is also true of other situations such as a StringBuilder local variable where only one thread will be accessing a StringBuilder object.
.
Edit video then
Perfect
Thank you 😊
is there some place to download this presentation please and thank you
No. As of now it is not there.
You writing in answer short things explain extra thing u should also mention there ...
Really good content, worth watching. Thanks for your efforts
Thank you. I am glad it is helpful !! keep sharing with your friends 😊
Sir ji question no 18 your second line entries and you speak entities
that's a good catch!! I hope, overall the video was helpful.
why string is immutable
It's weird actually, aap 3 points show kr rhe slide me & bole jaa rhe 6-7 points, why haven't you added those as well!!??
I ve added key points in the slide and added further points while explaining.
Still your point is noted. Thank you 😊
sir please change red color background
Thank you very much
You are welcome !! keep sharing with your friends 😊