IGNOU MCA MCS-024 Object Oriented Technologies and Java Programming SOLVED ASSIGNMENTS 2014-2015

IGNOU SOLVED ASSIGNMENTS FOR 1st Semester MCS-024 2014-2015  Object Oriented Technologies and Java Programming

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Q.1. a) What is Object Oriented Programming? Explain features of Object Oriented Programming. Write a program in java to show data hiding.

b) Explain why java is platform independent. Also explain how memory is managed in java.

Q.2. a) What is static method? Explain application of static method with example.

b) What are different arithmetic and logical operators in java? Write a Java program and show uses of all arithmetic operators.

c) What is final keyword in java ? Explain different uses of final keyword.

Q.3. a) What is method overloading? How it is different from method overriding? Write a java program to explain overloading and overriding of methods.

b) What is abstract class? Explain why abstract class is used in java, with the help of an example program.

Q.4. a) What is inheritance? Explain different types of inheritance supported by java.

b) What is an exception? Explain haw an exception is handled in Java. Create your own exception class to handle undesirable operation in your program.

Q.5. a) Write a java program to create a file of given name and directory and copy a file named myjava.java available at desktop.

b) What is String class in java? Explain different constructors and method of String class. Also write a java program to find the length of a given string.

Q.6. a) What is multithreading? Write a java program to explain how concurrency control is done.

b) What is I/O stream in Java? Explain what is byte stream? How byte stream is different from character stream.

Q.7. a) What is Java Applet? Create an Applet program to display your details including your academic and personal information. Use appropriate GUI components and images to make your applet more attractive and informative.

b) What are principles of event delegation model? Explain different sources of events and event listener.

Q.8. a) What is InetAddress class in Java ? Explain its methods and their uses.

b) What is RMI? Explain architecture of RMI.