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 »
Self-tutoring about computer systems: the tutor looks into what an object cache does. As I understand it, object caching is the storage of the answers to questions received by a database. The questions are called queries. A given query of …
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 …
Self-tutoring about computer science: the tutor mentions a key difference in types. I was reading in some documentation about a certain function with return type uint32. It means, to my understanding, “unsigned integer 32-bit,” so I wasn’t too surprised about …
Self-tutoring about computer science: the tutor mentions an observation. I am working on a project that uses an external library. To begin, I wanted to test if the library would compile as presented. I wrote a program that includes its …
Self-tutoring about computer science: the tutor mentions some ideas about programming errors. Writing programs in computer languages, some common types of errors are compile-time errors and logic errors. A compile-time error is one that the compiler has noticed. In simple …
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Self-tutoring about modern English and computer science terms: the tutor mentions one he stumbled upon. Today I looked up dunder and it was like opening an overfilled locker. Among its many meanings, dunder apparently can mean double underscore (found in …
Self-tutoring about the on-board text editor in Ubuntu, gedit: the tutor mentions typing special characters in it. Holding Ctrl+Shift+U, then typing its Unicode hex number, then Enter, seems to work to type a special character in gedit. Source: superuser.com
Self-tutoring about computer science: the tutor mentions a thought about using sorting algorithms. Among comparison sorts, merge sort and quicksort are both, for average case, order nlogn, which seems about the best you can get with comparison sorts. With actual …
Self-tutoring about Python: the tutor mentions the sorted() function. sorted() is a Python built-in function that can accept lists and even sets. The strength of sorted() is that it doesn’t change the input; rather, it returns a sorted list of …