File I/O
Read from and write to files. Use ifstream and ofstream to handle file data in your programs.
Lessons
1. Intro
Reading and writing files
2. The fstream Header
File stream library
3. What is ifstream?
Reading from files
4. What is ofstream?
Writing to files
5. Opening a File for Reading
Accessing existing files
6. Quiz: Counter-based loop
Counter-based loop
7. Opening a File for Writing
Creating and overwriting files
8. Checking if File Opened Successfully
Validating stream state
9. Quiz: Conditional execution
Conditional execution
10. Quiz: Opening Files
Knowledge check
11. Reading with >> Operator
Extracting formatted data
12. Reading Line by Line
Handling full lines
13. Reading Word by Word
Processing individual tokens
14. Reading Character by Character
Byte-level file access
15. Quiz: Character type
Character type
16. Writing with << Operator
Formatted output to files
17. Writing Lines
Structured text output
18. Closing Files
Resource cleanup
19. Quiz: Reading Methods
Knowledge check
20. File Modes
Controlling open behavior
21. Appending to Files
Preserving existing content
22. Binary vs Text Files
Understanding file formats
23. Reading Binary Data
Raw byte input
24. Quiz: Knowledge check
Knowledge check
25. Writing Binary Data
Raw byte output
26. Quiz: Binary Mode
Knowledge check
27. File Position
Random access navigation
28. tellg and tellp
Querying current position
29. Checking End of File
Detecting file boundaries
30. Common File I/O Patterns
Standard code templates
31. Quiz: Knowledge check
Knowledge check
32. Error Handling with Files
Detecting and recovering
33. Quiz: Error States
Knowledge check
34. RAII and File Streams
Automatic resource management
35. Practice: Copy File Contents
Read and write exercise
36. Practice: Count Lines in File
File analysis exercise
37. Quiz: File I/O Patterns
Knowledge check
38. Problem - Word Counter
File input basics
39. Word Counter - The Idea
File reading pattern
40. Word Counter - Algorithm
Implementation approach
41. Word Counter - Implementation
Pseudocode solution
42. Lessons from Word Counter
summary
43. Problem - Log Analyzer
File output basics
44. Log Analyzer - The Idea
File writing pattern
45. Log Analyzer - Algorithm
Implementation approach
46. Quiz: Knowledge check
Knowledge check
47. Log Analyzer - Implementation
Pseudocode solution
48. Lessons from Log Analyzer
summary
49. Section Recap
What we learned