IT2305 JAVA PROGRAMMINg QUESTION BANK:

IT2301 QUESTION BANK:

PART-A:

1.       What is the difference between static and non-static variables?\

2.       What is the purpose of finalization?

3.       What is the difference between the String and String Buffer classes?

4.       Can an abstract class be final? Why?

5.       What is an anonymous inner class and static inner class?

6.       What is the difference between the File and Random Access File classes?

7.       What are the advantages of the event-delegation model?

8.       What happens if an exception is not caught?

9.       What is the use of Reflection API?

10.   What are three ways in which a thread can enter the waiting state?

11.   Give thae properties of abstract class and methods.

12.   Why does java not support destructors and how does the finalize method will help in garbage collections?

13.   Write a declaration to convert the value of “Programmer” in the string variable ‘convert’ to Programming”.

14.   Distinguish between dynamic and static binding. What are the advantages of the event-delegation model?

15.   Define Proxy class and its methods.

16.   State the properties of interface.

17.   Write down the statements used to create a JFrame and a JButton and then add the JButton to the JFrame.

18.   List any two advantages of type parameters.

19.   When would you use the CountDownLatch synchronizers and Exchange Synchronizers?

20.   When do the following events occur?

i)AdjustmentEvent   ii)ItemEvent

PART-B:

Unit-I:

1. How objects are constructed? Explain constructor overloading with
   an example.
2. Write short notes on access specifiers and modifiers in java.                 
   
3. Write a java program to check whether the number is palindrome or not.
4. State the design hints for class and inheritance and also discuss the working  
   and meaning of the “static” modifier with suitable examples.                  
5. Explain in detail as how inheritance and polymorphism are supported in java     
    with necessary example.          
6. Explain the concept of finalizaion.Explain the finalize() method with an   
   example program and explain about mutators.
7. Discuss the working and meaning of the “static” modifier with example.and   explain static variable and static methods with an example program.
8. Explain about  Encapsulation,Abstraction.
9. Define constructor. How objects are constructed? Explain constructor    overloading with an example.
10. write a java program to check whether the number is prime or not.

UNIT-II:

1. What is a Package? What are the benefits of using packages? Write down
   the steps in creating a package and using it in a java program with an example.
2. Write a java program to search for a number in the given array using binary    search method.
3. Explain about Java Documenation comments with an example programs.
4. What is Dynamic binding? Show with an example how dynamic binding
    works.
5. Explain about arryas,Type of arrays and arrays methods.
6. Explain about Final class,Fields,Methods.
7. Explain about different types of string methods.
8. Write a java program to implement the multiple inheritance concept for calculating area of circle and square.
9. Design a Java package for numbers. Develop two different classes that belongs to two package, one for to check whether the given number is palindrome or not and the other to check whether the given number is odd or even and access these package using one main file
10. Design a Java interface for numbers. Develop two different classes that implement this interface, one for to check whether the given number is palindrome or not  and the other to check whether the given number is odd or even.
11. Develop a java code to implement the interface concept for finding the sum and average of given N numbers

UNIT-III:

1. Explain the concept of inner classes and explain the types of inner classes   
   with an example program.        
2. What is reflection and how does it help to manipulate java code.
3. How is a Frame created? Write a java program that creates a Online Education Loan System.
4. Consider a class person with attributes firstname and lastname.Write a java program    
   to create and clone instances of the Person class.
5. Write short notes about I/O stream classes.
6. How is a Frame created? Write a java program that creates a product enquirer form using frames.
7. Explain about interface with an example programs.
8. Explain about Graphics programming and  Expalin all 2D packages and classes.
9. Write a java program to implement the reflection concept for Date class.
10. Write a java program to draw the circle,ellipse,rectangle in the frame using Java swing.
11. Develop a java swing program to display 8 swing buttons and arrange that components using grid format.
12. Develop  a java swing code to create G-mail sign-in form with grid layout format.
13. Expalin about Paoxy class,Interface and Methods.
14. Develop a simple paint-like program that can draw basic graphical primitives in different dimensions using java swing.
15. Explain about callback.

UNIT-IV:

1. With a neat diagram explain the Model view controller design pattern
    and list out the advantages and disadvantages of using it in designing an
     application.
2. write the short notes about swing components with menu example  
    programs.
3. What is an Exception?Explain the exception hierarchy. Explain how to  
    throw, catch and handle Exceptions.
4. Write the java swing program to create the g-mail sign in form and display  
    that content to text area using insert button.
5. Explain about adapter classes and mouse events with an example.
6. Explain themenu components.Write a swing program to display the “FILE”       
    menu(Menu Item:NEW,OPEN,SAVE,SAVE AS) with “SAVE AS” sub menu.
7. Explain about Layout management and AWTEvent hierarchy.

UNIT-V:

1. Explain the thread state,thread properties and thread synchronization.
2. Write a java program that prints numbers   from 1 to 10 line by line after 
    every 5 seconds.
3. Briefly explain about the Thread Synchronization and synchronized keyword   
   with an example program.
4. With a neat diagram explain the thread states.

      5.    Explain the following term:                                                                   

     1.Generic reflection

      2.Inheritance rules for generics

      3.Bounded types & Unbounded types.

      4.Limitations and restrictions of Generic programming.    

       6.  What is Generic programming and why is it needed?Explain with example. List 
             the limitations and restrictions of generic programming

       7.