Overview
Strings characters ka sequence hain, Python mein operations ke liye bahut saare built-in methods hain.
Analogy
String moti ke haar ki tarah hai—har moti ek character hai, kaat sakte hain, check kar sakte hain, jod sakte hain.
Step-by-step
- Single ya double quotes se banao
- + ya f-string se join karo
- Index/slice se characters access karo
- upper(), lower(), split(), strip() jaise methods use karo
Visual
s = "hello"
s[0] → "h"
s[-1] → "o"
s[1:4] → "ell"
s.upper() → "HELLO"
Common mistakes
- Strings immutable hain—methods naya string return karte hain
- str+int se TypeError aata hai
- Method return value save nahi karna
Practice questions
- Slicing se string reverse karo
- Sentence mein vowels count karo