Java Interview Questions and Answers

  • J2EE Interview Questions and answers

    Question.1   What is J2EE? Answer:  J2EE is an environment for developing and deploying enterprise applications. The J2EE platform consists of a set of services, application programming interfaces (APIs), and protocols that provide the functionality for developing multitier, web-based applications. Question.2   What is the J2EE module? Answer:  A J2EE module consists..


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  • Advanced Java Interview Questions and answers

    Question.1   What is the purpose of garbage collection in Java, and when is it used? Answer:   The purpose of garbage collection is to identify and discard objects that are no longer needed by a program so that their resources can be reclaimed and reused. A Java object is subject to..


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  • Core Java Interview Questions and answers

    Question.1 What is the Java API? Answer:   The Java API is a large collection of ready-made software components that provide many useful capabilities, such as graphical user interface (GUI) widgets. Question.2   Describe the principles of OOPS? Answer:  There are three main principals of oops which are called Polymorphism, Inheritance and..


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