Data Types:

• int: Represents whole numbers.

• double: Represents floating-point numbers with double precision.

• char: Represents a single character.

• string: Represents a sequence of characters.

• bool: Represents a Boolean value (true or false).

Variables:

Declaration: <data_type> <variable_name>; Example: int age;

Operators:

• Arithmetic Operators:

  • + Addition

  • - Subtraction

  • * Multiplication

  • / Division

  • % Modulo

• Comparison Operators:

  • == Equal to

  • != Not equal to

  • > Greater than

  • < Less than

  • >= Greater than or equal to

  • <= Less than or equal to

• Assignment Operators:

  • = Assigns a value to a variable

  • += Adds and assigns

  • -= Subtracts and assigns

  • *= Multiplies and assigns

  • /= Divides and assigns

Control Structures:

• if-else Statement: if (<condition>) { // Code to execute if the condition is true } else { // Code to execute if the condition is false }

• for Loop: for (<initialization>; <condition>; <increment>) { // Code to execute repeatedly }

• while Loop: while (<condition>) { // Code to execute repeatedly while the condition is true }

Methods:

Declaration: <access_modifier> <return_type> <method_name>(<parameter_list>)

Example: public int AddNumbers(int num1, int num2) { int sum = num1 + num2; return sum; }

Classes:

Declaration: class <class_name> {}

Example: public class Person { public string Name { get; set; } public int Age { get; set; } }

Exception Handling:

Example: try { // Code that may throw an exception } catch (Exception ex) { // Code to handle the exception } finally { // Code that always executes, regardless of whether an exception occurred or not }

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