Looping Day Started!

Programming Session 3:

Hey everyone!

Today was Looping Day – the third session of my programming journey, and it felt like unlocking a superpower in coding. Loops help us repeat tasks without rewriting code over and over. So let’s dive into it!

🧠 Rules I Remember Before I Start

Before coding, I always keep these 6 self-made rules in mind to stay confident:

  1. ✅ Do the known actions – Start with what I know first.
  2. ❌ Don’t panic or fear the output – Errors are part of the learning.
  3. 💭 Think and search the very next step – Keep moving forward logically.
  4. 📦 Introduce variables if necessary – Store values if reused.
  5. 🔄 Small to big – Start simple, test, and then grow the logic.
  6. 🧘‍♂️ Stay calm, stay consistent – Progress takes time.

❓ What is a Loop?

A loop is a block of code that repeats again and again until a condition becomes false.

Instead of writing the same code multiple times, a loop does the job for us!

Example:

i = 0
while i < 3:
    print("Hello")
    i += 1

This will print "Hello" three times!

🤔 Why Do We Use Loops?

We use loops to:

  • Save time and effort
  • Avoid repeating code manually
  • Perform tasks multiple times
  • Make our code clean, short, and powerful
  • Handle unknown repetitions like user inputs or real-time data

⏰ When Do We Use Loops?

Use loops when:

  • You know or expect repetition in your task
  • You need to perform a task until a condition is met
  • You want to process items in a list, array, or dataset
  • You’re waiting for correct input or a signal

📍 Where Do We Use Loops?

Loops are used in:

  • Menu-driven programs
  • Games (for continuous actions)
  • Web forms (to check user input repeatedly)
  • Data processing (looping through records)
  • Automation tasks (running background jobs)

🛠️ How to Use a while Loop?

A while loop runs as long as the condition is true. Here's the basic structure:

# Step 1: Initialize
count = 0

# Step 2: Loop with condition
while count < 5:
    print("Looping...")
    count += 1  # Update to avoid infinite loop

⚠️ Important: If you don’t update the condition inside the loop, it will run forever!

📌 Practice Print (Loopprint)

Let’s print numbers from 1 to 5 using a loop:

num = 1
while num <= 5:
    print("Number is:", num)
    num += 1

Simple and sweet. That’s the beauty of loops.

✨ Final Thoughts

Today's session made me realize loops are the heart of automation in programming. With the right logic and patience, you can make your program smarter and shorter.

🔁 Don’t repeat yourself – use loops and let the computer do the hard work!