Self-tutoring about Java and programming: the tutor mentions the concurrent modification exception. Today I was experimenting with the Java type ArrayList. I don’t always program in Java, although I am a fan of it. I’m about to use some terms …

Computer science: Concurrent Modification Exception Read more »

Tutoring coding, operators come up. The tutor mentions the dot. From a top-down point of view, the . (aka, dot) operator sets the context wherein you want to refer. Therefore, obj0.helloWorld(); means “I want to execute the method helloWord() that …

Object-oriented programming: what does “.” do? Read more »

Tutoring programming, you might still use Notepad (I do). The tutor shares an observation. Some text editors have the option to display line numbers, so you can see the exact line you’re on. Since compilers often mention problems in code …

Programming: line numbers in Notepad Read more »