💻 Day 81: Variables & Data Types (C Language) – Hinglish
💻 Variables & Data Types (C Language) –
👉 Aaj hum seekhenge:
✅ Variable kya hota hai
✅ Data type kya hota hai
✅ C language ke main data types
✅ Examples
(Programming ka very important topic) 💯
📌 Variable kya hota hai?
👉 Variable = Data store karne ka container.
➡️ Simple words me:
Variable = Memory ka ek box jisme value store hoti hai.
🧠 Example:
int a = 10;
👉 Yahan:
int = data type
a = variable name
10 = value
📌 Data Type kya hota hai?
👉 Data type batata hai ki variable me kis type ka data store hoga.
Examples:
Number
Decimal
Character
🧩 C Language ke Main Data Types
1️⃣ int (Integer)
👉 Whole numbers ke liye.
Example:
int age = 20;
2️⃣ float (Decimal)
👉 Decimal numbers ke liye.
Example:
float price = 10.5;
3️⃣ char (Character)
👉 Single character ke liye.
Example:
char grade = 'A';
4️⃣ double
👉 Large decimal numbers ke liye.
Example:
double pi = 3.14159;
5️⃣ void
👉 No value.
⚔️ Difference: int vs float vs char
| Data Type | Use | Example |
|---|---|---|
| int | Whole number | 10 |
| float | Decimal | 10.5 |
| char | Character | 'A' |
🧪 Practice Questions (Exam)
✅ Theory:
Variable kya hota hai?
Data type kya hota hai?
int, float, char explain karo.
✅ Practical:
👉 Variables banao:
int a = 5;
float b = 2.5;
char c = 'X';
📝 Short Notes (Exam ke liye)
👉 Variable = Data container
👉 int = Integer
👉 float = Decimal