Java operator

1. Operators and Expressions
Operators: Symbols used to perform operations on variables and values.
Expressions: A combination of variables, operators, and values that produce a result.
Example: int result = a + b * c;

2. Arithmetic Operators
+ Addition
- Subtraction
* Multiplication
/ Division
% Modulus
Example: int sum = 5 + 3; // Output: 8

3. Relational Operators
== Equal to
!= Not equal to
> Greater than
< Less than
>= Greater than or equal to
<= Less than or equal to
Example: if (a > b)

4. Logical Operators
&& Logical AND
|| Logical OR
! Logical NOT
Example: if (a > b && c > d)

5. Bitwise Operators
& AND
| OR
^ XOR
~ Complement
<< Left Shift
>> Right Shift
>>> Unsigned Right Shift

6. Ternary Operator
Syntax: condition ? value_if_true : value_if_false;
Example: int min = (a < b) ? a : b;

7. Why Arithmetic in Java?
Even with a calculator, arithmetic operations in Java are needed:
- Automate calculations
- Perform dynamic computations in code
- Useful in gaming, finance, simulations, etc.

8. Data Types That Can't Use
Arithmetic
Cannot perform arithmetic on:
- boolean (true/false)
- Objects (non-numeric unless overridden)
- Strings (except + for concatenation)

9. Logical Operator Truth Table
A | B | A && B | A || B | !A
T | T | T | T | F
T | F | F | T | F
F | T | F | T | T
F | F | F | F | T

10. Shift Operators in Java
<< Left Shift (multiply by 2ⁿ)
>> Right Shift (divide by 2ⁿ)
>>> Unsigned Right Shift (fills with 0)
Example:
int a = 5; a << 1 = 10