Hello World
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Hello World is often one of the first programs that a programmer writes when learning a programming language. It introduces the programmer to the constructs that he/she will be dealing with in the particular language at hand, familiarizing him with variables and output. Another such quintessential program, the 99 Bottles of Beer program, prints the lyrics to the past-time song "99 Bottles of Beer on the Wall" from 99 to 0 and terminates. This program helps the beginning programmer learn loops or recursion.