Most Asked Tricky Core Java Interview Questions and Answers for Fresher and Experienced |Code Decode

You can use any class as a hashmap key. Primitives of course are not a class. Key just needs to implement equals and hashmap, even if it's in a bad or illogical way.

Nice tutorial, consider using the eclipse vim plugin.

if we are making instance as private in singleton class how can we access that in main class to change it's reference?

Please do make more vedios on Java 8 coding questions

I need more interview questions on Java 8 such as flat map,map,optional etc

We can use minus (-) in front of compareTo
employeeList.stream().map(Employee::getSalary).sorted((e1,e2)->-e1.compareTo(e2)).collect(Collectors.toList());
and if we want the list in Ascending order with unique element use TreeSet while collecting. ie collect(Collection.toCollection(TreeSet::new));

Thanks

Please add more question on java 8 stream programing that mainly asked during interviews.....

Thanks for sharing knowledge. Could you please make more videos on collections program. one of interviewer asked me, fetch the employees who located at Mumbai city. please explain this one. if possible.

Hi it's was very nice
where we can find your code .
please share me the link java 8 program interview part questions

Very clear explanation. Nowadays I became an addict of your videos, it really helping to brush up old things and learn so many new things. Can you please do more videos on Java 8 stream programs.

Pls share all the interview questions and answers in notes..it will helpful to others

Very useful
thank you so much

Please make a vedio on how to break single ton using executor

Please

Excellent explanation.. Keep going..

Great explained ... Appreciate u r all efforts..kindly make videos on frequently ask questions on java8

Hi! thank you for this video and pl.make more such videos

Mam, you are doing a great job.. it's helping a lot to quickly prepare for interviews..

I would like to know more about Java 8 interview questions ,it will be nice if u cover them

Hi very helpful video. Thanks for creating for us. Recently, I faced interview. Interviewer asked get the 2nd highest salary of employee using streams. Please let me know

Very clearly explained. Please add more such scenario based videos.

Nice explanation. Please make a video on all the remaining operations like forEach, reverse etc.

Please include More Java 8 coding questions like this

I was asked what is the difference between singleton design pattern of java and that of spring?

We need more of these and demo too

Thank you code decode for these videos.. Would like to see more on Multithreading and synchronization, also sql related interview questions. Thanks again :)

Nice questions, should add interveiw questions more frequently, very helpful. 👍🏼

sir, does selectorshub certification helps in interview and what are the selectorshub interview questions?

Not able view code clearly.please zoom in more

Want every interview questions related to java 8

In Java 8 example, can we use first map with salary and then Comparator.reverseorder() method directly instead of expression ?
Btw thanks for the video :)

Great, always there is something new to learn in your videos....! And please prepare video on executor service breaking Singleton. @Code Decode. Also would like to highlight as @shankar did that class not found is compile time because compiler forces us to handle that exception. It’s not like any other nullpointer exception which our compiler doesn’t, force to handle. That’s the key I think, but as you said we have to decide by seeing that whether compiler is checking DRIVER class or not, then I think no exception can be called as compile time exception. PLEASE CORRECT ME IF MY UNDERSTANDING IS WRONG.

Excellent explanation. Appreciated your efforts

Nicely explained.
We need more videos like this to crack the interview.

Great video. The password question was mind boggling. How about a real time example of accessing the memory dump and fetching the sensitive data.

Very well explained that classnotfoundexception and noclassdeferror

Please provide the complete demonstration of how to break singleton design pattern with code it will be helpful.

Can please make a video on junit testcases

In what scenario we will use singleton? What’s the use of it ?

Java 8 interview questions with map and flatmap and intermediate streams and parallel streams

Good Info.

Nicely explained. Ofcourse, we need more detailed interview trending questions.

Hi dear. Your videos are very helpful. I shared you videos to my friends. I am experienced in java. But refreshing java theory concepts by your videos. Now am looking for job change and I cleared several technical rounds.

Clear create the demo session for break singleton pattern

Please upload video on java stream api example for all the methods

Could you please create more and more videos...all possible questions of Java8

ClassNotFoundException is a checked exception and occurs when the Java Virtual Machine (JVM) tries to load a particular class and the specified class cannot be found in the classpath.

Thank you Madam! can you please create a video on each topic reflection, serialization and cloning breaking the sinlgeton design pattern as well

Would love to see a detailed video on different ways of breaking singleton pattern. Please make a video on it.

It would be helpful for many people