DCA3102 VISUAL PROGRAMMING

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SESSION AUGUST 2023
PROGRAM BACHELOR OF COMPUTER APPLICATIONS (BCA)
SEMESTER V
COURSE CODE & NAME DCA3102– VISUAL PROGRAMMING
CREDITS 4
NUMBER OF ASSIGNMENTS &

MARKS

02

30 Marks each

 

 

 

Assignment Set – 1

 

 

  1. Discuss the Architecture of .Net platform. What is Just-In-Time compiler?

 

Ans 1.

The .NET platform is a widely used framework developed by Microsoft for building and running various types of applications, including web, desktop, mobile, and cloud-based applications. It provides a rich set of libraries, tools, and runtime environments to simplify software development and ensure interoperability across different programming languages. Let’s discuss the Its Half solved only

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  1. Write a detailed note on various data types and operators in .NET

Ans 2.

.NET Data Types:

In .NET, data types are essentially classified into two broad categories: Value Types and Reference Types. Each data type, whether value or reference, determines the size and layout of the memory the variable occupies, the range of values that can be stored, and the set of operations that can

 

 

 

  1. Explain the features of Object-Oriented Programming concepts. Also discuss the concept of constructor and destructor with appropriate example.

 

Ans 3.

Object-Oriented Programming (OOP) is a programming paradigm that uses objects to model real-world entities and their interactions in software development. OOP provides a structured and organized way to design and implement software, making it easier to manage complexity and maintain code. There

 

 

 

Assignment Set – 2

 

 

4a.What is FileStream? Discuss the parameters required to create a FileStream object           

Ans 4a.

FileStream is a class in the .NET framework that provides a stream for a file, enabling both synchronous and asynchronous read and write operations. It is part of the System.IO namespace. The primary purpose

 

 

b  Discuss the various file modes used to open a file with appropriate example.

 

Ans 4b.

 

The FileMode enumeration provides various methods to open a file. Here are the primary modes:

  1. Append: Opens the file if it exists and seeks to the end, or creates a new file. This is useful for
  1. What is Data adapter? Explain its role in database

Ans 5.

A Data Adapter is a crucial component in the world of databases and software development. It acts as a bridge between a database and an application, enabling the application to communicate with the database without needing to understand the intricacies of the database’s internal workings. Let’s delve

 

 

  1. Describe the concept of Exceptions in .Net environment. Explain the Exit Try statement with the suitable example.

 

Ans 6.

Exceptions in .NET Environment

In the .NET environment, exceptions represent unexpected or exceptional events that occur during the execution of a program. These events can be due to various reasons, such as invalid input, file not found, network issues, or other runtime errors. Handling exceptions is crucial to ensure that the application can gracefully deal with errors and continue its execution or inform the user about