FatCow Posted September 29, 2014 Posted September 29, 2014 I have been given a simple ChatBot program for my Computer Science class, but I do not understand most of the codes and methods included in it Some of the things I do not understand in the program are "psn >= 0", "lastChar", and "substring". If anyone of you guys can spare some of your time to explain these to me, that would be great! I have attached the actual ChatBot file, so you could take a look at it (I had to upload the text file, because I couldn't upload the actual java). Magpie4.txt
Sensei Posted September 29, 2014 Posted September 29, 2014 (edited) String.substring() returns middle part of string. If length is missing it's probably going to the end of string. lastChar is of course last character, last letter, of the string. That code was checking whether it's dot. psn is variable name. Shortcut from position-index inside of string. Edited September 29, 2014 by Sensei 1
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