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Day 16 of My Data Analytics Journey !


This content originally appeared on DEV Community and was authored by Ramya .C

Programming Rules & Key Concepts

Date: 10/08/25
Day: 16
Special Class Learnings

Today’s class was packed with valuable programming fundamentals and practical insights. Here’s a summary of everything I learned today — from basic programming rules to essential coding techniques and even resume-building tips!

✅ Programming Rules I Learned

Here are some beginner-friendly programming rules I noted down, which are helping me build a strong mindset when solving problems:

  1. Don’t say “I don’t know” — say “Let me try.”
  2. Don’t think about the entire output at once.
  3. Think about each step carefully.
  4. Make it repeatable as much as possible.
  5. Introduce variables if you think it is necessary.
  6. Go from micro to macro.
  7. Go from known to unknown.

These rules help break down complex problems into manageable pieces — and that’s the key to learning programming effectively.

🧠 What I Learned Today:

📌 Number Systems:

  • Decimal
  • Hexadecimal
  • Octal

Understanding these systems is important for data conversion, memory addressing, and low-level operations.

🧮 Mathematical Operations:

  • How to square a value:
    Example: n**2 or pow(n, 2)

  • How to cube a value:
    Example: n**3 or pow(n, 3)

🔁 Division Operators:

  • / (Division) — returns float
    Example: 10 / 3 = 3.33

  • // (Floor Division) — returns whole number without decimal
    Example: 10 // 3 = 3

🔄 Number Reversal:

  • Learn how to reverse digits in a number using loops or string slicing.

🖨 Printing Last Two Digits of a Number:

If the number is 4563, the outputs can be:

63
56
45

This can be done using loops and string slicing or integer division with modulo.

➕ Additional Concepts:

  • Using cout / print()
  • Basic addition of numbers
  • Palindrome check
  • How to build a resume
  • How to prepare for interviews
  • How to partition the resume (technical, academic, project-based)

📝 Final Thoughts

Today’s class gave me a solid understanding of programming logic and job preparation strategies. I’m excited to continue my journey and keep sharing my learnings here.

If you’re also a beginner, I hope this helps motivate you to stay consistent and curious.

Happy coding ✨


This content originally appeared on DEV Community and was authored by Ramya .C