-Some classes contains your C# executable program.
-The entry point to the program is the static method Main() with void return type.
-It is a case sensitive language.
-Whitespaces like enter,tab,space are ignored by the compiler.
-No need to save your program with same file name as of your class containing Main() method.
-There can be multiple Main() methods in your program.
-The boundaries of namespace,class and method are defined by opening and closing curly brackets {}.
-A namespace is only logical collection of classes.
-The using keyword is used to inform compiler where to search for the defination of classes that you are about to in your C# program.
-There are three types of compiler exists in C#, line ,block and documentation.
-Enclosing your class in some namespace is optional.You can write your program where your class is not enclosed by any name space.
-It is not mandatory that Main method of program takes 'string[] args' as parameter.
-The entry point to the program is the static method Main() with void return type.
-It is a case sensitive language.
-Whitespaces like enter,tab,space are ignored by the compiler.
-No need to save your program with same file name as of your class containing Main() method.
-There can be multiple Main() methods in your program.
-The boundaries of namespace,class and method are defined by opening and closing curly brackets {}.
-A namespace is only logical collection of classes.
-The using keyword is used to inform compiler where to search for the defination of classes that you are about to in your C# program.
-There are three types of compiler exists in C#, line ,block and documentation.
-Enclosing your class in some namespace is optional.You can write your program where your class is not enclosed by any name space.
-It is not mandatory that Main method of program takes 'string[] args' as parameter.
