Java Variables Examples
✅ Java Variables — Examples
Variables in Java are used to store data values. Each variable has a type, a name, and optionally a value.
📌 1. Declare and Assign a Variable
📌 2. Declare First, Assign Later
📌 3. Multiple Variables in One Line
📌 4. Different Data Type Variables
📌 5. Change Variable Value
📌 6. Using Variables in Expressions
📌 7. Final (Constant) Variable (Cannot be Changed)
📌 8. String Concatenation with Variables
📌 9. Numeric Variables in Same Print
📌 10. Using var (Java 10+)
Java supports type inference using var:
✔ Summary
| Example Type | Example |
|---|---|
| Declare & assign | int x = 10; |
| Declare first, assign later | int x; x = 20; |
| Multiple variables | int a=1, b=2; |
| Constant variable | final int MAX = 50; |
