Day 1: First Program

Quick Answer

What You Will Learn

• A variable is a named box: name = "Arhan" stores the text Arhan under the name name.
• print() displays whatever is inside its brackets on the screen.
• A line starting with # is a comment. It is only for humans to read; Python skips it completely.
• print() can show several things at once: print(name, "is learning") joins them with a space.
• Python is case-sensitive: Name and name are two different variables.

Code

name = "Arhan"
lang = "Python"
# This is a comment, Python ignores it
print("Hello World")
print("My name is", name)
print(name, "is learning", lang)

Output

Hello World
My name is Arhan
Arhan is learning Python

Code Explained, Line by Line

1. A variable is a named box: name = "Arhan" stores the text Arhan under the name name.
2. print() displays whatever is inside its brackets on the screen.
3. A line starting with # is a comment. It is only for humans to read; Python skips it completely.
4. print() can show several things at once: print(name, "is learning") joins them with a space.
5. Python is case-sensitive: Name and name are two different variables.

Real-Life Use

Every program you will ever write starts here: showing output, storing data in variables, and leaving comments for other developers.

Test Yourself — MCQs

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