more than one main method

C# Introduction

C# Version Hisotry C# Language Features Installing Visual Studio C# Basic Project Structure Hello Wolrd, first C# program

Methods/Functions and parameters

C# Method or Function C# Method Parameters and Arguments C# Method Overloading C# Return Statements C# Static vs. Instance Methods C# Method Modifiers C# Method Signatures and Naming Conventions C# Function Documentation and Comments C# Value Type Parameters C# Ref Type Parameters Difference between Value and Ref Type C# Out Parameters Difference between Ref and out parameters C# Optional parameters Are Nullable types reference types in C#"

C# String Basics C# String Manipulation C# String Formatting C# String Comparison and Searching C# StringBuilder Class C# Regular Expressions C# Unicode and Encoding C# String Parsing and Conversion Difference between "string" and "String"C# String Escape Sequence C# Mutable and Immutable Concept Prove that string is immutable String value stored in memory Difference between string and stringbuilder Override the tostring() method

Enums or Enumerations

Enum/enumeration in C#Can you inherit enum in C#?Convert enum to string Convert enum to list in C#Cast int value to enum in C#Get int value from enum in C#Convert string to enum in C#Usage of enum in switch case statement Loop through all enum values Use tilde(~) with Enum

Main() method in C#

Main() method basics in C#More than one "Main()" method in C#Static Main() method in C#Overload Main() method in C#Override Main() method in C#Access modifiers of Main() method in C#Non-static method in C#Main() method arguments and return type async Main() method in C#Class without Main() method in C#Main() method rules in C#

Recursion in C#Base condition in recursion in C#Recursive Algorithms in C#Tree traversal using recursion in C#Stack overflow error in recursion Back tracking using recursion Indirect recursion in C#Recursive data structures in C#Tail Recursion in C#Recursive problem solving Recursion vs Iteration

File Handling in C#

C# File and File Info C# StreamReader and StreamWriter C# FileStream and BinaryReader/BinaryWriter C# Directory and DirectoryInfo Classes C# File Paths C# File and Directory Operations C# File Exceptions and Error Handling C# File Serialization and Deserialization C# File System Watcher

What is array?Single dimension array Multi dimension array Jagged array Param array Array with multi data types Different data types from object array Array with non-default values Array methods and properties Array manipulation techniques Array sorting algorithms Array Searching algorithms(linear, binary search)Array finding maximum and minimum Array of Reference Types

C# Generics C# Generic Constraints

C# ArrayList C# Array vs ArrayList C# List C# SortedList C# Dictionary C# Hashtable C# Dictionary vs Hashtable C# HashSet C# Hashtable vs HashSet C# Stack C# Queue

C# IEnumerable C# IEnumerator C# ICollection C# IList C# IDictionary C# IDisposable C# IComparable C# IEquatable C# ICloneable C# IQueryable C# INotifyPropertyChanged C# INotifyCollectionChanged C# IFormattable C# IAsyncResult C# IComparer C# IEqualityComparer C# IHttpHandler C# IHttpModule

C# Events & Delegates

C# Delegates C# Single-Cast Delegate C# Multi-Cast Delegate C# Generic Delegates C# Func Delegate C# Action Delegate C# Predicate Delegate C# Anonymous Methods C# Events Difference Between Event & Delegate Difference Between Interface & Delegate C# Covariance and Contravariance

Can we have more than one main method in C#?

Yes we can have. But .Net application can have only one entry point. It means that only one main method is allowed. Those Main method is considered to be the entry if it has the signature from any one of following Main methods:
• static void Main(string[] args)
• static void Main()
so below code is allowed:

Below code is not valid and doesn’t compile because it has two entry points:

Below code will also not be compiled because it doesn’t contain a static 'Main' method suitable for an entry point: