1. Which provides a runtime environment for Java byte code to be executed?
   • a. JDK
   • b. JVM
   • c. JRE
   • d. JAVAC
   • Answer: b. JVM
2. Which of the following are not Java keywords?
   • a. double
   • b. switch
   • c. then
   • d. instanceof
   • Answer: c. then
3. The default value of a static integer variable of a class in Java is,
   • a. 0
   • b. 1
   • c. Garbage value
   • d. Null
   • Answer: a. 0
4. Multiple inheritance means,
   • a. one class inheriting from more superclasses
   • b. more classes inheriting from one superclass
   • c. more classes inheriting from more super classes
   • d. None of the above
   • Answer: a. one class inheriting from more superclasses
5. Which statement is not true in the Java language?
   • a. A public member of a class can be accessed in all the packages.
   • b. A private member of a class cannot be accessed by the methods of the same class.
   • c. A private member of a class cannot be accessed from its derived class.
   • d. A protected member of a class can be accessed from its derived class.
   • Answer: b. A private member of a class cannot be accessed by the methods of the same class (False).
6. To prevent any method from overriding, we declare the method as,
   • a. static
   • b. const
   • c. final
   • d. abstract
   • Answer: c. final
7. Which one of the following is not true?
   • a. A class containing abstract methods is called an abstract class.
   • b. Abstract methods should be implemented in the derived class.
   • c. An abstract class cannot have non-abstract methods.
   • d. A class must be qualified as an ‘abstract’ class if it contains one abstract method.
   • Answer: c. An abstract class cannot have non-abstract methods (False).
8. The fields in an interface are implicitly specified as,
   • a. static only
   • b. protected
   • c. private
   • d. both static and final
   • Answer: d. both static and final
9. Which of the following is true?
   • a. A finally block is executed before the catch block but after the try block.
   • b. A finally block is executed, only after the catch block is executed.
   • c. A finally block is executed whether an exception is thrown or not.
   • d. A finally block is executed, only if an exception occurs.
   • Answer: c. A finally block is executed whether an exception is thrown or not.
10. What is garbage collection in the context of Java?
    • a. The operating system periodically deletes all the Java files available on the system.
    • b. Any package imported in a program and not used is automatically deleted.
    • c. When all references to an object are gone, the memory used by the object is automatically reclaimed.
    • d. The JVM checks the output of any Java program and deletes anything that doesn’t make sense.
    • Answer: c. When all references to an object are gone, the memory used by the object is automatically reclaimed.
11. The Java runtime system automatically calls this method while garbage collection.
    • a. finalizer()
    • b. finalize()
    • c. finally()
    • d. finalized()
    • Answer: b. finalize()
12. The correct order of the declarations in a Java program is,
    • a. Package declaration, import statement, class declaration
    • b. The import statement, package declaration, the class declaration
    • c. Import statement, class declaration, package declaration
    • d. Class declaration, import statement, package declaration
    • Answer: a. Package declaration, import statement, class declaration
13. An overloaded method consists of,
    • a. The same method name with different types of parameters
    • b. The same method name with different number of parameters
    • c. The same method name and same number and type of parameters with different return type
    • d. Both (a) and (b) above
    • Answer: d. Both (a) and (b) above
14. A protected member can be accessed in, Which is the false option?
    • a. a subclass of the same package
    • b. non-subclass of the same package
    • c. a non-subclass of different package
    • d. a subclass of different package
    • Answer: b. non-subclass of the same package (False).
15. All exception types are subclasses of the built-in class
    • a. Exception
    • b. RuntimeException
    • c. Error
    • d. Throwable
    • Answer: d. Throwable
16. When an overridden method is called from within a subclass, it will always refer to the version of that method defined by the
    • a. Super class
    • b. Subclass
    • c. Compiler will choose randomly
    • d. Interpreter will choose randomly
    • Answer: b. Subclass
17. Java compiler javac translates Java source code into
18. In Java, a character constant’s value is its integer value in the
19. In Java, a try block should immediately be followed by one or more .................... blocks.
20. An abstract data type typically comprises a ............... and a set of .................. respectively.