Spring 25 4

Introduction to Programming

  • Definition: Programming is the process of designing and building executable computer software to accomplish a specific task.

  • Importance: Essential for creating applications, operating systems, and tools that we use daily.

Basic Concepts

  • Code: Instructions written in a programming language that tell the computer what to do.

  • Programming Languages: Different languages used to write code, such as Python, Java, C++, and JavaScript.

  • Syntax: Rules that define the combinations of symbols that are considered to be correctly structured programs in a language.

  • Semantics: Meaning derived from the syntax; the intended tasks that each statement will execute.

Steps in Programming

  1. Problem Definition: Understand and articulate the problem that needs to be solved.

  2. Planning: Outline the steps and algorithms required to solve the problem.

  3. Implementation: Write the actual code using a programming language.

  4. Testing: Verify that the code works as expected and fix any errors (bugs).

  5. Maintenance: Update and improve the code over time.

Types of Programming Paradigms

  • Imperative Programming: Focuses on changing the program's state through commands.

  • Declarative Programming: Describes what the desired outcome is without explicitly listing the steps to achieve it.

  • Object-Oriented Programming (OOP): Organizes code into objects that contain both data and behaviors.

  • Functional Programming: Treats computation as the evaluation of mathematical functions and avoids changing state and mutable data.

Conclusion

  • Programming is a fundamental skill in today's technology-driven world, enabling problem-solving and innovation online and beyond.