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- Question
What is the purpose of declaring a variable as final?
- Correct Answer
- A final variable's value can't be changed final variables should be initialized before using them
- 1. Can a class be declared as protected? Discuss
- 2. Which package is imported by default? Discuss
- 3. Can a source file contain more than one class declaration? Discuss
- 4. Does the order of public and static declaration matter in main() method? Discuss
- 5. Can a main() method be declared final? Discuss
- 6. I do not want my class to be inherited by any other class. What should i do? Discuss
- 7. When will you define a method as static? Discuss
- 8. How is final different from finally and finalize()? Discuss
- 9. Which king class properly represents the relationship "King has a best friend who is a Soldier"?
Options- A. class King extends Soldier { }
- B. class King implements Soldier { }
- C. class King { private BestFriend Soldier; }
- D. class King { private Soldier bestFriend; } Discuss
- 10. How many of the following will follow JavaBean Listener naming rules? addListener addMouseListener deleteMouseListener removeMouseListener registerMouseListener
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
Technology problems
Search Results
Correct Answer: A class can't be declared as protected only methods can be declared as protected
Correct Answer: javalang package is imported by default even without a package declaration
Correct Answer: Yes a single source file can contain any number of Class declarations but only one of the class can be declared as public
Correct Answer: No It doesn't matter but void should always come before main()
Correct Answer: Yes Any inheriting class will not be able to have it's own default main() method
Correct Answer: You should declared your class as final But you can't define your class as final, if it is an abstract class A class declared as final can't be extended by any other class
Correct Answer: When a method needs to be accessed even before the creation of the object of the class then we should declare the method as static
Correct Answer: final is a modifier which can be applied to a class or a method or a variable final class can't be inherited, final method can't be overridden and final variable can't be changed finally is an exception handling code section which gets executed whether an exception is raised or not by the try block code segment finalize() is a method of Object class which will be executed by the JVM just before garbage collecting object to give a final chance for resource releasing activity
Correct Answer: class King { private Soldier bestFriend; }
Correct Answer: 2
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