| source code | can be written in a text editor such as Notepad (on Windows), emacs (on UNIX) or SimpleText (on Macintosh) |  |
| cannot always be made completely obvious without comments |  |
| has definition Code that is written by a person |  |
| has part comment |  |
| is a subtopic of How Java Works |  |
is interpreted  |  |
is stored in files ending with the .java suffix  |  |
| is a kind of code |  |
must be placed inside a class  |  |
| should be written in lines no longer than 80 characters so that readers do not have to scroll right, and so that the code always prints correctly |  |
| should consist of between about 25% and 50% comments |  |
| should use consistent code layout principle |  |