A Comprehensive Guide to C# Operators

C# operators are special symbols that perform operations on variables and values. They are a fundamental part of the C# programming language and are used for a variety of tasks, including arithmetic calculations, comparisons, and logical operations.

Key Concepts

1. Types of Operators

C# operators can be categorized into several types:

• Arithmetic Operators: Used for mathematical calculations.
  • Examples:
  • + (Addition)
  • - (Subtraction)
  • * (Multiplication)
  • / (Division)
  • % (Modulus)
• Relational Operators: Used to compare two values.
  • Examples:
  • == (Equal to)
  • != (Not equal to)
  • > (Greater than)
  • < (Less than)
  • >= (Greater than or equal to)
  • <= (Less than or equal to)
• Logical Operators: Used to combine multiple boolean expressions.
  • Examples:
  • && (Logical AND)
  • || (Logical OR)
  • ! (Logical NOT)
• Assignment Operators: Used to assign values to variables.
  • Examples:
  • = (Simple assignment)
  • += (Add and assign)
  • -= (Subtract and assign)
  • *= (Multiply and assign)
  • /= (Divide and assign)

2. Operator Precedence

Operators in C# have a specific order of precedence, which determines how expressions are evaluated. For example, multiplication and division are performed before addition and subtraction.

3. Unary Operators

Unary operators operate on a single operand. Common unary operators include:

• ++ (Increment): Increases a variable's value by 1.
• -- (Decrement): Decreases a variable's value by 1.
• - (Unary Negation): Changes the sign of a number.

4. Ternary Operator

The ternary operator is a shorthand for an if-else statement and is represented as follows:

condition ? true_expression : false_expression;

Example:

int result = (a > b) ? a : b; // Assigns the larger of a or b to result

Examples

Arithmetic Example

int a = 10;
int b = 20;
int sum = a + b; // sum is 30

Relational Example

bool isEqual = (a == b); // isEqual is false

Logical Example

bool isTrue = (a < b) && (b > 15); // isTrue is true

Assignment Example

int x = 5;
x += 2; // x is now 7

Conclusion

Understanding operators in C# is crucial for performing operations on data effectively. Familiarity with different types of operators and their precedence will enhance your ability to write efficient and effective code.