OMCA102 JAVA PROGRAMMING

Description

SESSION SPRING 2024 PROGRAM MASTER OF COMPUTER APPLICATION

SEMESTER I

COURSE CODE & NAME OMCA102, JAVA PROGRAMMING

CREDITS 4

 

Assignment Set – 1^st

Questions

 

1. Write an essay on the history of Java.

Ans: The History of Java

Java, a high-level, class-based, object-oriented programming language, has a rich history that reflects its pivotal role in the evolution of software development.

Conceived in the early 1990s, Java was designed to be platform-independent, secure, and efficient, addressing the needs of the rapidly expanding internet era.

This essay traces the origins, development, and impact of Java, highlighting key milestones and its enduring significance in

 

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2. A. Write down the rules for naming variables in Java.

Ans: Naming variables in Java follows specific rules and conventions to ensure that code is readable, maintainable, and free from errors.

Here are the primary rules and best practices for naming variables in Java: 

Rules for Naming Variables in Java Case Sensitivity:  Variable names are case-sensitive.

For example, my Variable and my variable would be considered different variables. Start with a Letter, Dollar Sign, or Underscore:  Variable names must begin with a letter (uppercase or lowercase), a dollar

 

 

3. A. List different kinds of operator in Java with brief description of each.

Ans: Java provides a wide range of operators that can be used to perform various operations on variables and values. These operators are categorized based on the type of operation they perform.

Here’s a list of different kinds of operators in Java along with a brief description of each: 

1. Arithmetic Operators These operators are used to perform basic arithmetic operations.

Addition (+): Adds

 

1. Write a program to print numbers from 1 to 10 in Java using for loop.

Ans: Below is a simple Java program that prints numbers from 1 to 10 using a for loop:

Public class Print Numbers {

Public static void main (String[] args) {

// using a for loop to

 

 

 

Assignment Set – 2^nd

Questions

 

4. A. How do you implement Inheritance in Java? Demonstrate with one example.

Ans: Inheritance is a fundamental concept in object-oriented programming (OOP) that allows a new class (subclass or derived class) to inherit properties and behaviours (fields and methods) from an existing class (superclass or base class). This promotes code reuse and establishes a natural hierarchy between classes. 

Implementing Inheritance in Java to implement inheritance in Java: 

Use the extends keyword in the subclass declaration to specify the superclass it inherits from. The subclass

 

5. How do you implement exception-handling in Java using the keywords: try, catch, finally, throw? Demonstrate with one example.

Ans: Exception handling in Java is a powerful mechanism that allows you to handle runtime errors, ensuring that the normal flow of the application can be maintained.

The keywords try; catch, finally, and throw are used to handle exceptions. 

Keywords try: The

 

6. Write down any 5 reasons that justifies the need of collection classes in java.

Ans:

Collection classes in Java are essential for handling groups of objects in a flexible and efficient manner.

Here are five reasons that justify the need for collection classes in Java: 

1. Efficient Data Management Collection classes provide efficient ways to store, retrieve, and manipulate large amounts of data. They are designed with performance in mind, offering optimized algorithms for common data operations such as searching, sorting, and traversing.

Example: Using Array List for dynamic arrays that grow automatically as more elements are added, eliminating the need