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The concept of ______ allows users to focus on the essential aspects of an object without worrying about its internal details.
The concept of ______ allows users to focus on the essential aspects of an object without worrying about its internal details.
abstraction
In VB, ______ allows objects to perform the same functions as their base object while behaving differently.
In VB, ______ allows objects to perform the same functions as their base object while behaving differently.
polymorphism
The main interface of VB is referred to as the ______ Development Environment (IDE).
The main interface of VB is referred to as the ______ Development Environment (IDE).
Integrated
The ______ window in VB contains the Menu and Toolbar and is always visible.
The ______ window in VB contains the Menu and Toolbar and is always visible.
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The ______ is a library of controls used to add elements like buttons and text boxes to your application.
The ______ is a library of controls used to add elements like buttons and text boxes to your application.
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The ______ window provides a list of all forms and modules in a VB project.
The ______ window provides a list of all forms and modules in a VB project.
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The ______ window allows you to enter parameters that define how controls like buttons and text boxes work.
The ______ window allows you to enter parameters that define how controls like buttons and text boxes work.
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Forms in VB serve as ______ that hold various controls including buttons and text boxes.
Forms in VB serve as ______ that hold various controls including buttons and text boxes.
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BASIC stands for Beginner’s All-purpose Symbolic ______ Code
BASIC stands for Beginner’s All-purpose Symbolic ______ Code
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Visual Basic was developed in mid-______ by the Microsoft Corporation.
Visual Basic was developed in mid-______ by the Microsoft Corporation.
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VB introduced the concept of an ______-driven programming model.
VB introduced the concept of an ______-driven programming model.
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The sequence of instructions executed in the program is controlled by ______.
The sequence of instructions executed in the program is controlled by ______.
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A ______ User Interface (GUI) allows users to easily operate computers using a pointing device.
A ______ User Interface (GUI) allows users to easily operate computers using a pointing device.
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Prior to Windows 3.1, IBM PC used a command line interface called ______.
Prior to Windows 3.1, IBM PC used a command line interface called ______.
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Visual Basic is a software development system developed by ______ to support creating applications.
Visual Basic is a software development system developed by ______ to support creating applications.
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VB has incorporated the principles of ______-driven design.
VB has incorporated the principles of ______-driven design.
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In Event-Driven Programming, the program remains idle until called upon to respond to some ______.
In Event-Driven Programming, the program remains idle until called upon to respond to some ______.
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An ______ Procedure is a block of code that is executed when an object is manipulated in a program.
An ______ Procedure is a block of code that is executed when an object is manipulated in a program.
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A ______ is a special statement that performs an action or a service for a particular object in a program.
A ______ is a special statement that performs an action or a service for a particular object in a program.
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In Object-Oriented Programming, ______ allows objects to inherit characteristics from other objects.
In Object-Oriented Programming, ______ allows objects to inherit characteristics from other objects.
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The process of hiding the implementation details of an object from its user is known as ______.
The process of hiding the implementation details of an object from its user is known as ______.
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Event-Driven programs consist of independent sets of ______.
Event-Driven programs consist of independent sets of ______.
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A ______ creates storage space for data, opens files, performs calculations, and does several important tasks.
A ______ creates storage space for data, opens files, performs calculations, and does several important tasks.
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A ______ is an implementation of an object type that has a data structure and methods.
A ______ is an implementation of an object type that has a data structure and methods.
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Study Notes
VB Terminologies
- Abstraction: Focuses on essential features of an object without needing to understand the internal details.
- Polymorphism: Enables creation of objects that can perform functions of a base object in varied ways.
- Event Procedure: A code block executed upon manipulation of an object, evaluating properties and executing program statements.
- Program Statement: Keywords responsible for carrying out program tasks, such as data storage or calculations.
- Method: A statement that provides specific actions or services for a designated object.
- Class: Defines an object type with a data structure and associated methods for operations.
- Inheritance: Organizes objects into classes that share specific structural and behavioral traits.
- Encapsulation: Conceals implementation details to promote information hiding.
Integrative Development Environment (IDE)
- Visual Basic (VB) consists of various windows presented at startup, forming the Integrated Development Environment.
- Key components of VB IDE include:
- Main Window: The primary visible interface containing menu and toolbar.
- Toolbox: A library of controls (buttons, labels, etc.) for user interface design.
- Project Explorer Window: Lists all forms and modules of the VB project.
- Property Window: Allows setting parameters for controls in the application.
- Form Window: Displays the controls that comprise the user application.
Visual Basic Overview
- Visual Basic is a high-level programming language developed from the earlier DOS version, BASIC.
- Created by Microsoft to facilitate application development for Windows OS.
- Introduced event-driven programming, emphasizing interactivity and response to user actions.
- Incorporates object-oriented concepts to enhance functionality.
History of Visual Basic
- BASIC (Beginner’s All-purpose Symbolic Instruction Code) was developed by John Kemeny and Thomas Kurtz in the mid-1960s.
- Visual Basic was launched by Microsoft in mid-1991.
Benefits of Visual Basic
- Offers a powerful and comprehensive system for Windows application development.
- Supported by numerous third-party products.
- Aligns with principles of object-driven design for flexibility and user-friendliness.
- Program execution is event-controlled, enhancing responsiveness to user actions.
Graphical User Interface (GUI)
- GUI allows intuitive operation of computers using pointing devices.
- Prior to GUIs, command line interfaces like MS DOS necessitated textual command knowledge for user interaction.
Event-Driven Programming
- Procedural Programs: Execute sequentially from start to finish, requiring user input for progression.
- Event-Driven Programs: Utilize independent instruction sets triggered by user events, executing only upon specific actions such as button presses or menu selections.
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