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Core Java interview

  • Java interview questions for 5 years experience
    Interview Questions Core Java interview Interview
    08 November

    Java interview questions for 5 years experience

    In this post, we will see Java interview questions for 5 to 6 years experience. When you have 5 years of experience as java developer, you need to have a good understanding of collections, multithreading concepts. If you are looking for the below queries then this post will help you as well. Java interview questions […]

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  • Java 8 Parallel Stream
    Java 8 Stream Core Java interview Interview
    07 November

    Java Parallel Stream

    In this post, we will see about Parallel Stream in java. Java Parallel Stream introduction Java 8 introduces the concept of parallel stream to do parallel processing. As we have more number of cpu cores nowadays due to cheap hardware costs, parallel processing can be used to perform operation faster. Let’s understand with help of […]

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  • Difference between map and flatmap in java
    Java 8 Core Java interview Interview
    16 October

    Difference between map and flatMap in java

    In this post, we will see the difference between map and flatMap in java.I have already covered Stream’s map and flatMap methods  in previous articles. As you might know, Stream’s map and flatMap method both can be applied on Stream<T> and return Stream<R> as output. The actual difference is, map operation produces one output value […]

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  • Java tricky interview questions
    Interview Questions Core Java interview Interview
    11 September

    Java technical interview questions

    In this post, we will see top Java technical interview asked in the Core Java interview.I have covered a lot of interview question on Java programming. Here is list of other java interview question you might find useful. Core java interview questions Java Collections interview questions Java String interview questions OOPs interview questions in java […]

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  • Java 8 interview questions
    Java 8 Core Java interview Interview
    10 September

    Top 30 Java 8 interview questions and answers

    In this post, we will some important interview questions specifically on Java 8. Java has changed a lot over years and Java 8 has introduced many new features which you need to know when you are preparing for Java interview.  Here is a list of most asked Java 8 interview questions. 1)  What are […]

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  • Java interview programs
    Interview Questions java programs Core Java interview Interview
    10 June

    Java Interview Programs for Logic Building

    In this tutorial, we will see Java interview programs for logic building. These java programs will help students to crack Java interview. Here is the list of Top 10 Java interview programs for logic building. Question 1: Check if number is odd or even? Answer: It is a very basic question. You need to check […]

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  • Java ExecutorCompletionService
    Concurrent APIs Multithreading Core Java interview Interview
    09 June

    Java ExecutorCompletionService

    In this post, we will see about Java ExecutorCompletionService example. ExecutorCompletionService class implements CompletionService. This class returns Future object in completion order. Why you may need to use ExecutorCompletionService: Let’s understand with the help of scenario: Let’s say you have 5 tasks, you submit it to the executors and you want to perform some operation as soon […]

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  • Java tricky interview questions
    Interview Questions Core Java interview Interview
    06 June

    Top 10 Java tricky interview questions

    In this tutorial, we will see top 10 Java interview questions. If you can solve these questions, it will help you to understand java programming better.You can also go through top 50 core java interview questions and answers. Question 1: What will be the output of below program: [crayon-6837cfd0c727f141267246/] Question 2: Guess the output of below […]

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  • Java FutureTask example
    Concurrent APIs Multithreading Core Java interview Interview
    28 May

    Java FutureTask example

    In this tutorial, we will see about Java FutureTask example. FutureTask class has been introduced in JDK 5 with Executor Framework. FutureTask class is the concrete implementation of the Future object and provides methods for start and cancel the task.It also provides method to see if the computation is done or not. We can query […]

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