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Latest Java 1 Job Interview Questions And Answers.


Why don't preparation your interviews. Best and top asking questions Java 1 questions and answers. Prepare your job Java 1 interview with us. Most frequently asked questions in Java 1 interview. Top 10 most common Java 1 interview questions and answer to ask. Java 1 most popular interview question for fresher and experiences. We have good collection of Java 1 job interview questions and answers. Ask interview questions and answers mnc company.employee ,fresher and student. Java 1 technical questions asking in interview. Complete placement preparation for major companies tests and Java 1 interviews,Aptitude questions and answers, technical, interview tips, practice tests, assessment tests and general knowledge questions and answers.






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Latest Java 1 FAQ Java 1 Interview Questions and Answers for Experiences and Freshers.




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What are some common problems you have faced in multi-threading environment? How did you resolve it?

Memory-interference, race conditions, deadlock, live lock and starvation are example of some problems comes in multi-threading and concurrent programming. There is no end of problem if you get it wrong and they will be hard to detect and debug.... view more
submited by :- jayvik on 2014-04-14 09:34:51

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What is immutable object? How does it help on writing concurrent application?

Another classic interview questions on multi-threading, not directly related to thread but indirectly helps a lot. This java interview question can become more tricky if ask you to write an immutable class or ask you Why String is immutable in Java a... view more
submited by :- jayvik on 2014-04-14 09:34:00

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What is difference between CyclicBarriar and CountdownLatch in Java ?

One difference is that you can reuse CyclicBarrier once barrier is broken but you can not reuse ContdownLatch.... view more
submited by :- jayvik on 2014-04-14 09:33:23

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How will you awake a blocked thread in java?

This is tricky question on threading, blocking can result on many ways, if thread is blocked on IO then I don't think there is a way to interrupt the thread, let me know if there is any, on the other hand if thread is blocked due to result of calling... view more
submited by :- jayvik on 2014-04-14 09:32:41

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Why we call start() method which in turns calls run() method, why not we directly call run() method ?

when you call start() method it creates new Thread and execute code declared in run() while directly calling run() method doesn’t create any new thread and execute code on same calling thread. Read my post Difference between start and run method in... view more
submited by :- jayvik on 2014-04-14 09:31:58

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How will you take thread dump in Java? How will you analyze Thread dump?

In UNIX you can use kill -3 and then thread dump will print on log on windows you can use CTRL+Break. Rather simple and focus thread interview question but can get tricky if he ask how you analyze it. Thread dump can be useful to analyze deadlock s... view more
submited by :- jayvik on 2014-04-14 09:31:14

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What is race condition? How will you find and solve race condition?

Another multi-threading question in Java which appear mostly on senior level interviews. Most interviewer grill on recent race condition you have faced and how did you solve it and some time they will write sample code and ask you detect race conditi... view more
submited by :- jayvik on 2014-04-14 09:30:48

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What is volatile keyword in Java? How to use it? How is it different from synchronized method in Java?

Thread questions based on volatile keyword in Java has become more popular after changes made on it on Java 5 and Java memory model. It’s good to prepare well about how volatile variables ensures visibility, ordering and consistency in concurrent e... view more
submited by :- jayvik on 2014-04-14 09:30:21

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What is atomic operation? What are atomic operations in Java?

Simple java thread interview questions, another follow-up is do you need to synchronized an atomic operation? :) You can read more about java synchronization here.... view more
submited by :- jayvik on 2014-04-14 09:27:26

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Write a program which will result in deadlock? How will you fix deadlock in Java?

Java thread interview questions and answers This is my favorite java thread interview question because even though deadlock is quite common while writing multi-threaded concurrent program many candidates not able to write deadlock free code and they ... view more
submited by :- jayvik on 2014-04-14 09:26:52

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Write code to solve the Produce consumer problem in Java?

Similar to above questions on thread but more classic in nature, some time interviewer ask follow up questions How do you solve producer consumer problem in Java, well it can be solved in multiple way, I have shared one way to solve producer consumer... view more
submited by :- jayvik on 2014-04-14 09:24:24

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Write code to implement blocking queue in Java?

This is relatively tough java multi-threading interview question which servers many purpose, it checks whether candidate can actually write Java code using thread or not, it sees how good candidate is on understanding concurrent scenarios and you can... view more
submited by :- jayvik on 2014-04-14 09:23:34

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What are differences between wait and sleep method in java?

Only major difference is wait release the lock or monitor while sleep doesn't release any lock or monitor while waiting. Wait is used for inter-thread communication while sleep is used to introduce pause on execution. See my post wait vs sleep in Jav... view more
submited by :- jayvik on 2014-04-14 09:23:02

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What is the advantage of new Lock interface over synchronized block in Java?

You need to implement a high performance cache which allows multiple reader but single writer to keep the integrity how will you implement it?The major advantage of lock interfaces on multi-threaded and concurrent programming is they provide two sepa... view more
submited by :- jayvik on 2014-04-14 09:19:33

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submited by :- jayvik on 2014-04-14 09:18:42

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What is the difference between ServletConfig and ServletContext?

ServletConfig as the name implies provide the information about configuration of a servlet which is defined inside the web.xml file or we can say deployment descriptor.its a specific object for each servlet.ServletContext is application specific obje... view more
submited by :- jayvik on 2014-04-09 08:54:34

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what is servlet collaboration?

 communication between two servlet is called servlet collaboration which is achieved by 3 ways.1. RequestDispatchers include () and forward() method .2. Using sendRedirect()method of Response object.3. Using servlet Context methods... view more
submited by :- jayvik on 2014-04-09 08:54:06

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Why we need to implement Single Thread model in case of Servlet.

In J2EE we can implement our servlet on two different ways either by using:1. Single Thread Model2. Multithread ModelDepending upon our scenario, if we have implemented single thread means only one instance is going handle one request at a time no tw... view more
submited by :- jayvik on 2014-04-09 08:53:37

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How can you get the information about one servlet context in another servlet?

In context object we can set the attribute which we want on another servlet and we can get that attribute using their name on another servlet.Context.setAttribute (“name”,” value”)Context.getAttribute (“name”)... view more
submited by :- jayvik on 2014-04-09 08:52:49

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How can we refresh servlet on client and server side automatically?

On client side we can use Meta http refresh and server side we can use server push.... view more
submited by :- jayvik on 2014-04-09 08:52:09



Latest Java 1 questions and answers for experienced


Java 1 best Interview Questions have been designed especially to get you acquainted with the nature of questions you may encounter during your interview for the subject of Java 1 Programming Language. here some questions that helpful for your interview. Java 1 2018 job interview questions with answers. Java 1 for employee and fresher. Here we present some more challenging practice Java 1 interview questions and answers that were asked in a real interview for a Java 1 developer position. These questions are really good to not just test your Java 1 skills, but also your general development knowledge. Java 1 programming learning. we hope this Java 1 interview questions and answers would be useful for quick glance before going for any Java 1 job interview.