Coding_in_C_Presentation_for freshmen .pptx

coding in C

1. Introduction to Coding in C Basics of programming in C language

2. What is Coding? Coding = writing instructions a computer can understand. Programs are step-by-step solutions to problems. C is one of the oldest and widely used programming languages.

3. Why Learn C? Foundation of many modern languages (C++, Java, etc.) Used in systems programming, operating systems, embedded devices Teaches low-level concepts like memory, data types, control structures

4. Structure of a C Program Preprocessor directives main() function Statements and expressions Example: #include <stdio.h> int main() { printf("Hello World"); return 0; }

5. Basic Components of Coding in C Data types (int, float, char, etc.) Variables and constants Operators (+, -, *, /, %) Input and Output (scanf, printf)

6. Control Structures Sequential execution Decision making: if, else, switch Loops: for, while, do-while

7. Example Program #include <stdio.h> int main() { int a, b, sum; printf("Enter two numbers: "); scanf("%d %d", &a, &b); sum = a + b; printf("Sum = %d", sum); return 0; }

8. Best Practices in Coding Use meaningful variable names Comment your code Keep code clean and readable Test with different inputs

9. Summary Coding in C teaches problem-solving and logical thinking Every program has input → process → output Start small, practice often