Strings (Vaarthaigal) 📝

Strings na enna? Adhu verum characters-oda collection dhaan — basically, text (vaarthaigal). Programming-la neenga adhigama use panna pora data type idhu dhaan! Password, username, email id ellame strings dhaan.

1. Creating Strings (Strings uruvakkuvadhu epdi?)

Oru text-a string-a maathanum na, adha quotes kulla podanum. Neenga single quotes '' illana double quotes "" edhu venaalum use pannalam.

greeting = "Hello!"
name = 'Alice'

Rendume same dhaan! Aana oru periya rule irukku: " la start panna " la dhaan mudikkanum. "Hello' nu maathi pota error adikkum!

Quotes ulla Quotes (Inception!): Oruvelai unga string kullaye oru quote varanum na enna pandradhu?

# Idhu correct: Veliya double quote, ulla single quote
sentence = "It's a beautiful day"

2. String Concatenation (Rendu strings-a serkuradhu)

Rendu vaarthaigala onna serkkanum na, Maths-la use pandra kootal symbol + (addition) use pannalam:

first = "Hello"
second = "World"
# Inga naduvula oru space " " add pandrom
message = first + " " + second
print(message)  # Output: Hello World

Idhukku peru dhaan Concatenation.

⚠️ Kavanikka vendiyavai: Computer-ku thaanaagave space vida theriyadhu! Neenga first + second nu kudutha HelloWorld nu ottikittu dhaan varum. Adhanaal dhaan naduvula " " add pandrom. Apram, string-yum number-yum + vechu serka mudiyadhu, error adikkum!

3. String Methods (Strings kooda vilayada)

Python-la strings-ku neraya superpowers irukku. Adhuku peru dhaan Methods. Oru string pinnadi . (dot) vechu idha use pannalam:

text = "Beginner Codes"
print(text.upper())  # BEGINNER CODES (Ellame capital)
print(text.lower())  # beginner codes (Ellame small)
print(text.replace("Codes", "School")) # Beginner School

4. f-Strings (Formatted Strings - Super magic!)

Variables-a oru string-kulla kondu vara, modern Python-la oru super feature irukku. Adhu dhaan f-strings. Pazhaya + concatenation method-a vida idhu romba easy! String-ku munnadi oru chinna f pottutu, ulla variables-a {} brackets-kulla potta podhum.

name = "Alice"
age = 25
print(f"Ennoda per {name} and enaku {age} vayasu aagudhu.")

💡 Theriyuma? f-strings Python 3.6 version-la dhaan kondu vandhanga. Adhuku munnadi programmers .format() illana % formatting use pannitu irundhanga. Ippo ellarum f-strings dhaan use pandranga.

Your Turn! (Unga neram!)

1. Rendu variables create pannunga: name (value: "Beginner Codes") and year (value: 2024).
2. Oru f-string use panni ipdi print() pannunga: Welcome to Beginner Codes, est. 2024