Java Programming (IT-504 (C)) - Important Questions

What is a Constructor in Java? Explain its types with a suitable example/program, e.g., finding the area of a circle using a constructor.

Explain the difference between method overloading and method overriding with example.

Explain Dynamic Method Dispatch in Java with example program.

Define abstract class and explain all cases for implementing an abstract class.

Explain Java garbage collection mechanism.

Justify why Java is an object-oriented language.

How to create a package in Java with an example.

Explain how multiple inheritance is implemented in Java.

Discuss various levels of access protection available for packages and their Implementations.

Explain any two of the following:

Explain the life cycle of an Applet with suitable example.

Write a java swing program to find the sum of two numbers.

What is Abstract Window Toolkit (AWT)? Explain its facilities, containers and components in detail.

Explain in brief about event sources and event listeners.

What is multithreading in Java? Explain the inter thread communication with the help of suitable example.

Write a Java program that creates three threads displaying specific messages at 1 second, 2 seconds and 5 seconds intervals

Explain throw vs throws statements in Java in detail with examples.

Explain exception handling in Java with try, catch, finally and throw blocks using a suitable example program.

Explain Thread class and Runnable interface and write a Java program to demonstrate multithreading

Explain the terms try, catch, throw and assertions in Java with examples.

Explain thread synchronization with an example program.

What are the basic steps for using JDBC to access database? Explain briefly with syntax.

Write a program to copy content of one file to another using character stream class.

What is a Stream? What is the difference between byte streams and character streams? How are they used to capture input from the user?

Write a Java program to illustrate communication between client and server.

Illustrate the Iteration Statements with example.

Demonstrate what are Jump statements? Give an example for each of them.

Discuss about the static, final keywords with an example.

Write a program in Java to find $n^{th}$ prime number where $n$ is any integer and should be taken as input from the user.

What is introspection in java beans? Explain how BeanInfo interface helps in introspection of beans?

Explain the following methods bind(), rebind(), createSubcontext(), getAttributes(), modifyAttributes() method with syntax.