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java programming questions and answers for beginners-part1

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Java coding test questions and answers

 Objective Type Q&A(part1)

  1. Array indexes start with?--> A: zero

  2. Which keyword is used to create a class in Java?--> A: class

  3. To declare an array in Java, define the variable type with? --> A: [ ]

  4. Which keyword is used to import a package from the Java API library?--> A: import

  5. Why include comments in Java programs?--> A: clarity of code

  6. Which keyword is used to return a value inside a method? -->A: return

  7. Which statement is used to stop a loop?--> A: break

  8. When does method overloading is determined?--> A: At compile time

  9. Which concept of Java is achieved by combining methods and attributes into a class?--> A: Encapsulation

  10. compile time polymorphism is one type of polymorphism in Java programming.

  11. Method overriding is a combination of inheritance and polymorphism? --> A: true

  12. The value of a string variable can be surrounded by single quotes --> A: false

  13. In Java, it is possible to inherit attributes and methods from one class to another. --> A:true

  14. Does java support constructor overloading? --> A: true

  15. The wrapper objects for the primitive values are immutable --> A: true

  16. An interface can extend more than one interface --> A: true

  17. The java source code can be created using a notepad editor --> A: true

  18. Data hiding makes the data more reliable and reusable --> A: true

  19. If a class is derived by another class then the base class cannot be used independently --> A: false

  20. The process of having methods with same name but having diffrent parameter list and return types is called overloading









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