CLI Calculator - Reading User Input in Rust | Rust by Examples (Lesson 2)
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5:18
T
Taught by Celeste AI - AI Coding Coach
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Build an interactive command-line calculator in Rust! Learn how to read user input, parse strings to numbers, and use match expressions for clean operator handling.
๐ฆ What You'll Learn:
โข Reading input with std::io::stdin()
โข Parsing strings to numbers with .parse()
โข Using .trim() to clean input
โข Match expressions for operator handling
โข Building interactive CLI programs
โฑ๏ธ Timestamps:
0:00 - Introduction
0:15 - Creating the Calculator Project
0:36 - Reading User Input Explained
0:56 - stdin Demo (Writing Code)
1:46 - Parsing Strings to Numbers
2:06 - Parsing Demo
2:51 - Building the Calculator Logic
3:11 - Calculator Code Walkthrough
3:44 - Running the Calculator
4:20 - Recap
4:45 - Thanks for Watching
๐ Series: Rust by Examples - Learn Rust through hands-on projects!
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๐ Next: Lesson 03 - Guessing Game
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#rust #rustlang #programming #calculator #stdin #tutorial #coding #beginners #rustbyexamples
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Duration
5:18
Published
January 10, 2026
Added to Codegiz
March 15, 2026