Variables

Java:

int age = 25; // Simple assignment

double total = 100.50; // Assigning a literal

int sum = age + 10; // Assigning an expression

Python:

age = 25  # No type declaration

total = 100.50

sum = age + 10

C++:

int age = 25;

double total = 100.50;

int sum = age + 10;

Notes

Static Typing (Java, C++): Requires explicit type declaration; type mismatches cause compile-time errors.

Dynamic Typing (Python): Type is inferred at runtime, allowing flexibility but requiring careful validation.

Compound Assignment: Combines assignment with an operation (e.g., x += 5 is equivalent to x = x + 5).

Immutability: In Java, final variables can only be assigned once (e.g., final int MAX = 100;).