Object Oriented Programming in Java — Winter 2021

Do as directed. 1. What is Java Virtual Machine? 2. Use of this and super keywords. 3. A _________ is a collection of classes and interfaces. 4. Amethod declared with____________modifier cannot be overridden. 5. Define Garbage Collection. 6. Define Comparable and Comparator Interface. 7. What is reference variable?

Explain all concepts of Object-Oriented Programming.

Explain. why Java is popular with all its features.

Explain Datatypes and why it is important.

Explain all Operator with appropriate example.

Explain importance of Constructor. Discuss the overloading of methods and constructors with suitable example.

Explain do while, while and for loop statements.

What is Object class? Explain the hashCode(), equals() and toString() methods of Object class with example.

Write the difference between class, abstract class and interface with JAVA program.

Demonstrate use of Top-level nested classes and Inner classes with suitable example.

Explain the process of creating and using package in java with proper example.

Where is Collection framework used? Discuss the Set and List interfaces with example.

What is the usage of exceptions in Java? Discuss the try, catch and finally using proper example.

1. Explain life cycle states of Thread. 2. What is a daemon thread. Give one example of a daemon thread.

Explain InputStream, Reader, OutputStream and Writer classes.

Write a program that copies all the content from one file to another. Pass the file names using command line argument.

What is Generic class? Explain it with bounded type parameter.