Java MCQ Questions for Placement


Q.  EJB QL is a Query Language provided for navigation across a network of enterprise beans and dependent objects defined by means of container managed persistence.

a. True
b. False


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MCQs:  In Servlet Terminology what provides runtime environment for JavaEE (j2ee) applications. It performs many operations that are given below: 1. Life Cycle Management 2. Multithreaded support 3. Object Pooling 4. Security etc.
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MCQs:  These two ways are used to create a Frame (1) By creating the object of Frame class (association) (2) By extending Frame class (inheritance)
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MCQs:  Which is the container that doesn't contain title bar and MenuBars but it can have other components like button, textfield etc?
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MCQs:  Implement the Listener interface and overrides its methods is required to perform in event handling.
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MCQs:  Where are the following four methods commonly used? 1) public void add(Component c) 2) public void setSize(int width,int height) 3) public void setLayout(LayoutManager m) 4) public void setVisible(boolean)
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MCQs:  Which method when implemented must return true while there are still more elements to extract, and false when all the elements have been enumerated?
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MCQs:  From the following statements which is a disadvantage of an java array?
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MCQs:  The PipedInputStream and PipedOutputStream classes can be used to read and write data simultaneously.
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MCQs:  Which method returns the interrupted flag after that it sets the flag to false if it is true?
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MCQs:  Unchecked exceptions are checked at compile-time rather they are checked at runtime.
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MCQs:  Struts supports which of these model components?
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MCQs:  Abbreviate the term POJO?
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MCQs:  Which of the following is not used to seek a file pointer?
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MCQs:  During dynamic memory allocation in CPP, new operator returns _________ value if memory allocation is unsuccessful.
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MCQs:  We can create objects of the abstract class.
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MCQs:  Which of the followings is/are pointer-to-member declarator?
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MCQs:  Default value of static variable is_____ .
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MCQs:  ________ are used to format the data display in CPP.
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MCQs:  Reusability of the code can be achieved in CPP through ______ .
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MCQs:  By default, members of the class are ____________ in nature.
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