An Index of Entry Points 2. Such statements are called prompts . Don't worry too much for now about exactly how this works. With this code the computer will display our message but it will NOT accept any input. Otherwise, the computer outputs an error message and the program stops, or worse, goes into an infinite loop.
All programming languages have a syntax and a semantics .
As we noted, these lines of code also have a meaning to the computer - their semantics. You have seen enough little chunks of code. It is time to see the whole program. Here it is - although there are a number of elements we have not yet discussed. Still, there is some of what looks like mumbo-jumbo so let's go through the code.