System Namespace

The fundamental types and base classes for all .NET applications.

System Namespace

This namespace contains the fundamental classes and base types that are used in all .NET applications. It includes types for primitive data, strings, dates, exceptions, and more. Many other .NET namespaces are built upon the types defined in the System namespace.

Classes

  • Object Class

    Provides functionality common to all classes, including the default implementation of equality, hash code generation, and string representation.

    public class Object
  • String Class

    Represents text as a sequence of characters. String objects are immutable.

    public sealed class String : IComparable, ICloneable, IConvertible, IEnumerable, IEnumerable<char>, IList<char>, ICollection<char>, IReadOnlyList<char>, IReadOnlyCollection<char>, IEquatable<string>
  • Int32 Struct

    Represents a 32-bit signed integer.

    public struct Int32 : IComparable, IComparable<int>, IEquatable<int>, IFormattable
  • Boolean Struct

    Represents a Boolean value (true or false).

    public struct Boolean : IComparable, IComparable<bool>, IEquatable<bool>
  • DateTime Struct

    Represents an instance in time, expressed as a date and time of day.

    public struct DateTime : IComparable, IComparable<DateTime>, IEquatable<DateTime>, IFormattable
  • Exception Class

    The base class for all exceptions in the .NET Framework. It is the root of the exception class hierarchy.

    public class Exception : _Exception

Enums

  • DayOfWeek Enum

    Specifies the day of the week.

    public enum DayOfWeek
  • ConsoleColor Enum

    Specifies the foreground and background colors used by the console.

    public enum ConsoleColor