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Core Java Quizzes, Questions & Answers

Calling all I.T. specialists! What programming language is your field of expertise? Are someone who's goal oriented? Hopefully, you're object oriented too! Nah... Just kidding! But we're not joking when we tell you we have quizzes about "Core Java"... You have a heap to choose from too! Ready to start out with some basics?

Say "Hello World!" to topics on syntax and semantics. Too easy for you? How about quizzes on some special classes? Applets and servlets; Let's give it a go? There are other quizzes on the Java Platform, libraries, and others too. Get ready to initialize! Do you think you are on a "class" of your own when it comes to knowledge in "Core Java"? Find out when you take on our quizzes... Good luck!

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Questions: 30  |  Attempts: 3791   |  Last updated: May 15, 2024
  • Sample Question
    Consider the following listed items: A. Employee() { } B. public Employee() { } C. private Employee() { } Consider the following statements: I.   no-argument constructor, that does not allow instantiation from within the package II.  no-argument constructor, that does not allow instantiation from outside the package III. no-argument constructor Which of the following option gives the exact matches of above listed items and statements?   Consider the following listed items: A. Employee() { } B. public Employee() { } C. private Employee() { } Consider the following statements: I.   no-argument constructor, that does not allow instantiation from within the package II.  no-argument constructor, that does not allow instantiation from outside the package III. no-argument constructor Which of the following option gives the exact matches of above listed items and statements?{  
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INTRODUCTION TO OOPS INTRODUCTION TO JAVA AND SDE LANGUAGE FUNDAMENTALS AND OPERATORS

Questions: 45  |  Attempts: 674   |  Last updated: Sep 5, 2023
  • Sample Question
    Consider the following code: 1. class Test { 2. public static void main(String args[]) { 3. double d = 12.3; 4. Dec dec = new Dec(); 5. dec.dec(d); 6. System.out.println(d); 7. } 8. } 9. class Dec{ 10. public void dec(double d) { d = d - 2.0d; } 11. } Which of the following gives the correct value printed at line 6?
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JAVA is everywhere, from your microwave oven to DVD player, TV remotes to music players, almost everywhere JAVA is used. Well, cut to short, Core Java focuses on the language basics such as data structures, data types, operators,...

Questions: 45  |  Attempts: 745   |  Last updated: Mar 21, 2023
  • Sample Question
    Which of the following are uses of Object class?(Choose 3)
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Questions: 40  |  Attempts: 91   |  Last updated: Dec 7, 2023
  • Sample Question
    Under which of the following scenarios a checked exception is thrown? (Choose 2)
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COLLECTION UTILITY PACKAGE

Questions: 40  |  Attempts: 639   |  Last updated: Sep 7, 2023
  • Sample Question
    Which statements are true about comparing two instances of the same class,given that the equals() and hashCode() methods have been properly overridden? (choose all that apply)
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