Java Questions
Home | About Me | Favorite Links | Question Papers | etm java papers

Question Papers

SET 1 May-2003
    1. write any six distinct features in Java programming .
    2. Write about the standard data types in Java.
    1. How a for loop can be defined and used within the program? Explain with suitable examples.
    2. Explain the role of Java applets in designing a web page.
    1. What is object oriented programming? How is it different from the procedure oriented programming?
    2. What are unique advantages of an object oriented paradigm?
    3. what kind of things can become objects in object-oriented programming?
    1. What is an interface? What is the major differences between an interface and class.
    2. Describe the various forms of implementing interfaces. Give examples of java code for each case.
  5. Write a Java program to print the following frame . The size increases when you move from left to right.
    AAAAAA
    BBBBBBB
  6. Explain the Color class and its different functions used in applet programming and also explain the showstatus() mehtod with an applet example.
  7. write a short notes on the following
    1. Types of Exceptions
    2. Cautions in using exception clause
    3. Multithreading
    4. Thread groups
    1. Explain the basic concepts of multithreading.
    2. Demonstrate how threads can be manipulated in java.
SET 2 may-2003
    1. Discuss the different types of literals available in Java.
    2. Write about automatic type conversion and explain when casting is needed?
    1. Define a class in Java. How classes and objects can be in Java programs. Illustrate with example.
    2. Write down the usage of finalize() method.
    1. What is class and object? How does it accomplish data hiding?
    2. What are the common relationship between classes?
    3. How do you identify the classes/ objects from the problem domain?
    1. Give an example where interface can be used to support multiple inheritance. Demonstrate a standalone Java program for the example.
    2. What are the similarities between interfaces and classes?
  5. Develop an applet that recieves three numerical values as an input from the user and then displays the largest of the three on the screen. Write a HTML page and test the applet.
    1. Explain at least 5 functions of the applet class with necessary example.
    2. Write an applet that asks the user to enter two floating point numbers, obtain the two numbers from the user and draws the sum, product , quotient of the two numbers.
  7. Write short notes on the following
    1. RuntimeException
    2. UncaughtException
    3. Statements used to handle exceptions in Java.
    1. Demonstrate the use of multiple threads.
    2. Explain how thread priorities are manipulated.
SET 3 may-2003
    1. What is a Java Applet? What is the advantage of writing applets in Java? How it differs from application programs?
    2. What is the usage of import statement ? Explain with suitable example.
    1. Illustrate usage of different kinds of jump statements break, continue,and return statement in Java program with examples.
    2. Write a Java applet program to display the welcome message in the center of the screen.
    1. What data and methods organized in an object oriented program?
    2. What is constructor in Java? what are its special properties?
    3. How many types of constructors are there in Java? Explain.
    1. A super class variable can reference a subclass object. Justify your answer with example program.
    2. Define reusable classes based on inheritance and abstract classes and abstract methods.
  5. Write an applet to display the following figure .
  6. Write an applet program to demonstrate the drawing of line, circle,oval, rectangle and 3d rectangle.
  7. Why exception handling is considered as a one of the important features in OOP write your explanation with suitable examples.
    1. Demonstrate the use of thread synchronization primitives.
    2. Demonstrate the use of multiple threads in Java.
SET 4 may-2003
    1. Define an array. In java, how the arrays of different dimensions can be created and initialized?
    2. Write about the usages of the keyword 'final' in Java?
    1. What is the need for member function or method inside a class? Explain the procedure to define and add a method to a Java class.
    2. Explain how a break statement can be used as go to statement in a Java program with example.
    1. How does object oriented approach differ from object based approach?
    2. Define class with multiple methods and a constructor.
    3. Differentiate the local and instance variables. Use suitable example.
    1. What is an array? How is it different from vector?
    2. Write a program in Java to add two matrices.
    3. Differentiate between abstract classes and interfaces.
  5. Write an applet to draw the following shapes with different color. 1. Ellipse 2. Polygon 3. Cube 4. Cylinder.
  6. Write an applet which demonstrates tic-tac-toe game.
    1. What is "Exception handling"? Why is it considered as a necessary feature in JAVA?
    2. Write program to catch array out of bound exception when you enter more number of arguments at the command prompt.
  8. What is synchronization? Explain in brief why do we need to synchronize the threads. Identify the role of monitors in thread synchronization.