ITEC81 QUIZ 2 Flashcards by Jhay Peñaloza

VB.NET stands for?

Visual Basic. Network Enabled Technologies

How well did you know this?

Not at all

Perfectly

It is a simple, high-level, object- oriented programming language developed by Microsoft in 2002.

It is a successor of Visual Basic 6.0, that is implemented on the Microsoft.NET framework.

It supports the OOPs concept, such as abstraction, encapsulation, inheritance, and polymorphism.

Everything in the VB.NET language is an object, including all primitive data types (Integer, String, char, long, short, Boolean, etc.), user-defined data types, events, and all objects that inherit from its base class.

VB.NET programming

How well did you know this?

Not at all

Perfectly

is a simple, multi- paradigm object-oriented programming language designed to create a wide range of Windows, Web, and mobile applications built on the.NET Framework

VB.NET

How well did you know this?

Not at all

Perfectly

It is an object-oriented programming language that follows various oops concepts such as abstraction, encapsulation, inheritance, and many more.

VB.NET / Features of VB.NET programming

How well did you know this?

Not at all

Perfectly

It means that everything in VB.NET programming will be treated as an object.

This language is used to design user interfaces for window, mobile, and web- based applications.

VB.NET

How well did you know this?

Not at all

Perfectly

It supports Boolean condition for decision making in programming.

true/false

VB.NET - true

How well did you know this?

Not at all

Perfectly

It uses an external object as a reference that can be used in a VB.NET application.

• Automatic initialized a garbage collection.

• It follows a structured and extensible programming language for error detection and recovery.

• Conditional compilation and easy to use generic classes.

It is useful to develop web, window, and mobile applications.

VB.NET features

How well did you know this?

Not at all

Perfectly

VB.NET is designed to be user- friendly and easy to learn, making it accessible for beginners. Its syntax is straightforward and resembles natural language.

Ease of Use

How well did you know this?

Not at all

Perfectly

VB.NET supports drag-and-drop functionality in the Visual Studio IDE, which speeds up the development of desktop and web applications by reducing the amount of manual coding required.

RAPID APPLICATION DEVELOPMENT (RAD)

How well did you know this?

Not at all

Perfectly

It fully supports OOP principles such as inheritance, encapsulation, and polymorphism, promoting code reuse and better organization.

OBJECT-ORIENTED PROGRAMMING (OOP)

How well did you know this?

Not at all

Perfectly

While traditionally associated with Windows, VB.NET applications can also be run on other platforms, such as Linux and macOS, using tools like .NET Core or .NET 5/6.

CROSS-PLATFORM DEVELOPMENT

How well did you know this?

Not at all

Perfectly

The.NET runtime environment and garbage collection can introduce performance overheads compared to lower-level languages like C++.

PERFORMANCE OVERHEADS

How well did you know this?

Not at all

Perfectly

Despite improvements, VB.NET’s cross-platform support is still less mature compared to languages like C# or Java, which can limit its use in non-Windows environments.

LIMITED CROSS-PLATFORM SUPPORT

How well did you know this?

Not at all

Perfectly

VB.NET is not suited for low-level system programming or applications requiring direct hardware interaction, as it abstracts many of these details away.

True/False

True

How well did you know this?

Not at all

Perfectly

VB.NET inherits some of the negative perceptions associated with its predecessor, Visual Basic 6.0, such as being considered less powerful or modern compared to hewer languages.

True/False

True

How well did you know this?

Not at all

Perfectly

is a software development platform that was introduced by Microsoft in the late 1990

The.NET Framework

How well did you know this?

Not at all

Perfectly

The.NET Framework is a software development platform that was introduced by Microsoft in the late ____

1990

How well did you know this?

Not at all

Perfectly

It is a virtual machine that provide a common platform to run an application that was built using the different language such as C#, VB.NET, Visual Basic, etc.

It is also used to create a form based, console- based, mobile and web-based application or services that are available in Microsoft environment

.NET FRAMEWORK

How well did you know this?

Not at all

Perfectly

Connect files from .NET compilers, translate to executable file and manage the execution.

COMMON LANGUAGE RUNTIME (CLR)

How well did you know this?

Not at all

Perfectly

defines .NET standard data type for all .NET programming languages

Common Type System (CTS)

How well did you know this?

Not at all

Perfectly

define rules for language interoperability such as naming, data type definition

Common Language Specification (CLS)

How well did you know this?

Not at all

Perfectly

translates IL(Intermediate Language) into executable, processor specific machine language

Just-In Time Compiler (JIC)

How well did you know this?

Not at all

Perfectly

• FCL consist of approx. 100 assemblies each with one or more classes

• Each class has methods that you invoke to perform a task

• Classes are organized logically into namespaces

• Use import statement to tell the compiler the specific namespace to access

FRAMEWORK CLASS LIBRARY(FCL)

How well did you know this?

Not at all

Perfectly

Classes are organized logically into namespaces

True/False

True

How well did you know this?

Not at all

Perfectly

The figure on this presentation are examples of selected namespaces

FRAMEWORK CLASS LIBRARY(FCL)

Contain definition and code for Forms, Modules, Class Modules etc.

Object File / .vb

This file describes the project and lists the files included in the project.

Project File / .vbproj

When you design the User Interface (GUI) and writing the code.

Design Time

When you execute and test the program

Run Time

When you have Run time errors, and you stop execution

Break Time

In VB.NET (Visual Basic .NET), the program structure is defined by the organization of code within a project. True/False

True

are used to organize code and prevent naming conflicts. They group related classes, interfaces, and other types.

namespace

A VB.NET program is typically encapsulated within a 'Module' or 'Class'. True/False

True

is a container for functions and subroutines that can be accessed globally within the application.

Module

is a blueprint for creating objects and contains methods, properties, and events.

Class

method is the entry point of a VB.NET application. It is where the program begins execution. you write the actual code to perform tasks. This includes declarations, assignments, loops, conditionals, and method calls.

Main

VB.NET provides structured exception handling using Try, Catch, Finally, and Throw blocks to handle runtime errors.

Error Handling

Comments are used to document code

apostrophe (')

These are errors in the code that violate the rules of the programming language's syntax. They occur when the code doesn't conform to the grammar or structure expected by by the compiler or interpreter.

Syntax error

These errors occur during the execution of the program, after it has successfully.compiled. They are often due to invalid operations, such as dividing by zero, accessing an array out of bounds, or attempting to use a null reference.

Runtime error

These errors occur when the program compiles and runs without crashing but produces incorrect results. Due to flaws in the algorithm or design, leading the program to behave in unintended ways.

Logic errors

are reserved words that have special meaning in VB.NET. They are part of the language's syntax and cannot be used as identifiers (like variable names, function names, etc.). are predefined and used to perform specific operations or define the structure and behavior of the code.

Keywords

Defines a subroutine (a method that does not return a value).

Sub

Defines a function (a method that returns a value).

Function

are names given to various elements in a program, such as variables, methods, classes, objects, and namespaces. They are user-defined names and must adhere to specific naming rules. Unlike keywords, identifiers are not reserved words and can be chosen by the programmer.

Identifiers

Identifiers are case-insensitive in VB.NET, meaning myVariable and MyVariable are considered the same. True/False

True

refers to which type of data or value is assigning to a variable or function so that a variable can hold a defined data type value.

Data type

It defines the name of the variable that you assign to store values.

VariableName

It represents the name of the data type that you assign to a variable.

Data type

It is the default type of the variable. It means if you don't declare the variable then the default Data Type for that variable is object.

Object

The main purpose of Visual Basic .NET is to develop windows and web applications. true/false

true

The part of these applications that users interact with is known as

User interface

A graphical user interface or GUI consists of one or more windows. True/False

True

is a rectangular area that contains other visual elements such as text and buttons.

Windows

The Visual Studio integrated development environment (IDE) includes all the tools you need fo create a Windows Forms app with several visual elements. True/False

True

It is an action that takes place within a program

Event

In order for a control to respond to a specific event, you must write as special type of procedure called an

Event Handler

Event handlers are also known as event procedures True/False

True

is an item in a program that contains data and has the ability to perform actions

Object

The data an object contains is referred to as properties, or attributes True/False

True

The operations/actions that an object can perform are called

Methods

A method is a special type of ___________ that belongs to an object

Procedure

It is specific type of object that usually appears in a program's graphical user interface.

Control

It is typically used to create user interface elements or widgets in applications developed using the Visual Basic (VB) programming language or a related technology. are elements that allow users to interact with the application.

VB controls

It is a programming language developed by Microsoft, and it is often used to create Windows-based applications with graphical user interfaces (GUIs).

Visual Basic

It is a type of user interface element you create on a Visual Basic form by using a toolbox control. In fact, in Visual Basic, the form itself is an object.

Object

Its which describe the object

Properties

It cause an object to do something. are used to access or manipulate the characteristics of an objector a variable.

Methods

are what happens when an object does something. It is a signal that informs an application that something important has occurred. When an event is initiated, procedure called that handles the event.

Event

It is a value or characteristic held by a Visual Basic object, such as Caption or ForeColor.

Property

A method is a procedure created as a member of a class and they cause an object to do something.

Control Method

Control events include click, double click, close, load, resize,etc. True/Flase

True

It is an interactive element that users can click to trigger an event or action. It typically represents an action like submitting data, opening a dialog, or performing a specific function.

Button

It is a non-editable text element used to display information or instructions to the user. It does not allow user interaction or input.

Label

It allows users to enter and edit text. It is commonly used for user input like names, addresses, or any textual data.

Textbox

It control provides a dropdown list of items from which users can select one. It combines the features of a TextBox and a ListBox.

ComboBox

It displays a list of items that users can select from. It supports single or multiple selections depending on its configuration.

Listbox

It allows users to select or deselect an option. It is typically used for binary choices.

Checkbox

It allows users to select one option from a group of mutually exclusive options. RadioButtons are usually used in groups.

RadioButton

It is used to display images within a form. It supports various image formats and can be used for displaying static graphics.

PictureBox

provides a customizable grid for displaying tabular data. It supports complex data operations like sorting, filtering, and editing.

DataGridView

allows users to select a date and optionally a time from a calendar control.

DateTimePicker

It control visually represents the progress of a task. It is often used to show progress in operations like file downloads or data processing.

ProgressBar

a menu bar at the top of a form, allowing users to access various application functions through a hierarchical menu system.

Menustrip