The number one program is Hello World.
This program prints the string "Hello World".
This web site will save your text in a file call Hello.cs and compiled
When a class is executed the system looks for a method called
starts execution there. If a class does not have a main method then it
may compile fine - but it cannot be executed. Try it.
Console is the standard output - on a command prompt
it simply goes to
the screen. In this environment I stick it on a web page.