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Temperature Converter - Gambas Typing CST Test

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FUNCTION cToF(c AS Double) AS Double
	RETURN c * 9 / 5 + 32
END FUNCTION

FUNCTION fToC(f AS Double) AS Double
	RETURN (f - 32) * 5 / 9
END FUNCTION

PRINT "25°C = "; cToF(25); "°F"
PRINT "77°F = "; fToC(77); "°C"
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Temperature Converter — Gambas Code

Converts Celsius to Fahrenheit and Fahrenheit to Celsius.

FUNCTION cToF(c AS Double) AS Double
	RETURN c * 9 / 5 + 32
END FUNCTION

FUNCTION fToC(f AS Double) AS Double
	RETURN (f - 32) * 5 / 9
END FUNCTION

PRINT "25°C = "; cToF(25); "°F"
PRINT "77°F = "; fToC(77); "°C"

Gambas Language Guide

Gambas is a free, object-oriented programming language and development environment based on BASIC, designed primarily for Linux. It allows rapid development of graphical, database, and console applications, with a visual IDE similar to Visual Basic.

Primary Use Cases

  • ▸Developing Linux GUI applications
  • ▸Rapid prototyping for desktop software
  • ▸Database applications with MySQL, PostgreSQL, or SQLite
  • ▸Educational purposes for learning programming
  • ▸Small utility and productivity tools on Linux

Notable Features

  • ▸Visual IDE with drag-and-drop form designer
  • ▸Object-oriented extensions to BASIC
  • ▸Database and SQL support
  • ▸Multimedia and networking libraries
  • ▸Cross-platform support via Linux and some BSDs

Origin & Creator

Created by Benoît Minisini in 1999 as an open-source alternative to Visual Basic for Linux.

Industrial Note

Gambas is primarily used for rapid prototyping, educational projects, and Linux desktop applications where cross-platform or Windows compatibility is not required.

Quick Explain

  • ▸Gambas extends BASIC with object-oriented features and a rich set of libraries.
  • ▸It includes an integrated development environment (IDE) with a form designer, debugger, and code editor.
  • ▸Gambas supports GUI applications, database integration, networking, and multimedia on Linux desktops.

Core Features

  • ▸BASIC-like syntax with modern enhancements
  • ▸Classes, modules, and objects
  • ▸Signals and slots for event-driven programming
  • ▸Automatic memory management
  • ▸Integrated debugger and GUI designer

Learning Path

  • ▸Learn BASIC syntax
  • ▸Practice Gambas console applications
  • ▸Explore GUI development with forms
  • ▸Connect applications to a database
  • ▸Build complete desktop projects

Practical Examples

  • ▸Creating a simple GUI calculator
  • ▸Developing a database CRUD application
  • ▸Building an event-driven form application
  • ▸Networking with sockets in Gambas
  • ▸Multimedia playback or image processing

Comparisons

  • ▸Similar in syntax to Visual Basic
  • ▸Slower than compiled languages like C++
  • ▸Smaller ecosystem than Python or Java
  • ▸Best suited for Linux desktops rather than cross-platform apps
  • ▸Offers rapid development with a full IDE

Strengths

  • ▸Rapid development for Linux desktop applications
  • ▸Intuitive syntax similar to Visual Basic
  • ▸Built-in IDE with GUI designer
  • ▸Supports modern object-oriented programming
  • ▸Active open-source community with extensions

Limitations

  • ▸Primarily Linux-focused, limited Windows/Mac support
  • ▸Smaller ecosystem compared to mainstream languages
  • ▸Less suitable for performance-critical applications
  • ▸Limited industrial adoption
  • ▸Relatively smaller community and documentation

When NOT to Use

  • ▸High-performance or large-scale applications
  • ▸Cross-platform development beyond Linux
  • ▸Mobile or web development
  • ▸Enterprise-grade software requiring heavy support
  • ▸Projects needing large community support

Cheat Sheet

  • ▸PRINT 'Hello' - output text
  • ▸DIM x AS Integer - declare variable
  • ▸SUB MySub() ... END - define subroutine
  • ▸CLASS MyClass ... END - define class
  • ▸PUBLIC / PRIVATE - visibility modifiers

FAQ

  • ▸Is Gambas free?
  • ▸Yes, licensed under the GPL.
  • ▸Can Gambas run on Windows or macOS?
  • ▸Primarily Linux, limited support on other platforms.
  • ▸Is Gambas object-oriented?
  • ▸Yes, with classes, modules, and inheritance.
  • ▸Does Gambas support databases?
  • ▸Yes, MySQL, PostgreSQL, SQLite, and ODBC connections.
  • ▸Can Gambas create GUI applications?
  • ▸Yes, using the integrated form designer in the IDE.

30-Day Skill Plan

  • ▸Week 1: Gambas syntax and console programs
  • ▸Week 2: GUI design and event handling
  • ▸Week 3: Object-oriented programming with classes and modules
  • ▸Week 4: Database connectivity and queries
  • ▸Week 5: Complete GUI projects and testing

Final Summary

  • ▸Gambas is a Linux-focused, object-oriented BASIC language and IDE.
  • ▸Ideal for rapid development of GUI and database applications.
  • ▸Supports modular programming with classes and modules.
  • ▸Includes a visual form designer, debugger, and runtime environment.
  • ▸Best suited for educational, prototyping, or small Linux desktop applications.

Project Structure

  • ▸Forms/ - GUI form files
  • ▸Classes/ - object-oriented code
  • ▸Modules/ - reusable code modules
  • ▸Resources/ - images, icons, and data files
  • ▸Config/ - project settings and metadata

Monetization

  • ▸Distribute Linux desktop apps
  • ▸Educational and training software
  • ▸Internal company tools
  • ▸Open-source community contributions
  • ▸Consulting and rapid prototyping services

Productivity Tips

  • ▸Use IDE shortcuts for rapid coding
  • ▸Design GUI forms visually
  • ▸Reuse modules for repeated functionality
  • ▸Leverage database connectors and libraries
  • ▸Regularly backup projects and resources

Basic Concepts

  • ▸Variables and basic data types (Integer, String, Boolean, Array)
  • ▸Subroutines and functions
  • ▸Classes, modules, and objects
  • ▸Event handling with signals and slots
  • ▸Database connections and queries

Official Docs

  • ▸Gambas official website and wiki
  • ▸Gambas 3 reference manuals
  • ▸Community tutorials and guides

More Gambas Typing Exercises

Gambas Counter and Theme ToggleGambas Random Number GeneratorGambas Todo ListGambas Dice RollerGambas Countdown TimerGambas Prime CheckerGambas Shopping CartGambas Name GreetingGambas Stopwatch

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