@CodeDecode Amazing explanation Ma'am , would like to see more on streams coding questions also on sql query questions please , This is a great platform to refresh java!!
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.
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.
Checked exceptions are checked at compile time by compiler Shankar. If u have watched the video, can u see any compile time error there!??. Please don't follow blogs blindly man. Please help us if we are wrong but as far as we know, it's runtime.
And Jvm comes into picture during runtime and javac is used during compile time 🙂. There is some misunderstanding I believe because u only said Jvm comes into picture in this type of error and jvm comes into picture during runtime n not compile time. Hence u only proved its runtime exception. But nice doubt, it will help people getting their doubts cleared. Thanks 👍👍
@@CodeDecode Java docs is saying ClassNotFoundException is checked because it is child class of Exception class. Any child class of RuntimeException is unchecked. Hope now it is clear. docs.oracle.com/javase/7/docs/api/java/lang/ClassNotFoundException.html
I never want to teach you but I found some mistake thus informed you. You are doing very great job by helping us with this set of questions. Hope you will not take my suggestion in other way 👍👍👍
Something is fishy in the example of NoClassDefFoundException When you remove the .class file nd execute ur class it still shows, ClassNotFoundException
Thank you code decode for these videos.. Would like to see more on Multithreading and synchronization, also sql related interview questions. Thanks again :)
Spring create singleton object per ApplicationContext. If you have more than one ApplicationContext in your project Spring will create more than one object. In contrast Java Singleton object is created per JVM.
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
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.
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.
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.
Nicely and perfectly crafted library thanks for sharing, I would suggest updating this library with new latest questions or I would like to share some new question bank as I have over 100+ new questions relevant to these recent year share me your email id to sent your way!!!
This is what I’m looking for, no one explains simple code base examples for interview preparation. But this video has amazed me with live interview questions nd in a simple practical examples as well. Please keep posting videos on all other related latest technologies as well. Especially latest Python modules as Python is going to rock the world with a lot of upcoming libraries.
Excellent video. Yes, few more java 8 scenario based questions, also scenario based for core java concepts - like abstract class, interface etc.. also we are asked how to create hashing on our own and something similar to strings as well?
No worries, don't be disheartened. Its a part of professional journey. We all have faced rejections and then what we get is the best. All the best man. You deserve much more 👍👍
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 :)
map() will give you list of salary and you'll be sorting that.. We need the list of Employee and not list of Employee's salary. I hope it is making sense.
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.
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));
