Which Java JDK Should You Use?
Lewis Coosner
2023-10-11
Java programmers need to decide which version of Java to use. They also need to decide which Java JDK to use. Lewis looks at some options.
Coding Matters
Coding matters: How smart are your shoes?
Jacqui Coosner
2023-10-05
Pascal Bornet is a LinkedIn Top Voice on tech and AI. (Top Voices are members of a small, invitation-only group of experts.) He posts interesting videos of tech used in industries, from pollution control to manufacturing. This week he posted a video of “smart” shoes. The shoes store the kinetic
Off-by-One Errors
Lewis Coosner
2023-10-04
A quick look at off-by-one errors and fence-post errors.
Coding matters: Good and bad predictions
Jacqui Coosner
2023-09-28
Moore’s law has been a staple of the tech industry for 50 years. Other tech predictions have been horribly wrong. And a few photos of old computers from our collection.
Why Do Computers Count From Zero?
Lewis Coosner
2023-09-27
Ever wondered why Java arrays start from zero? Lewis explains
Coding matters: In with the old
Jacqui Coosner
2023-09-21
Shiny object syndrome is when we are distracted by anything new. Programmers like the idea of working on a new system, but there are many advantages to maintenance programming.
AWT vs Swing vs JavaFX
Lewis Coosner
2023-09-20
Sometimes you need to write a rich client graphical user interface in Java. Lewis looks at the standard JSE toolkits: AWT, Swing and JavaFX.
Coding matters: Tech with empathy
Jacqui Coosner
2023-09-14
Technology can do many things, but here’s one that we need and didn’t think of before: improve our empathy.
Sealed Classes in Java
Lewis Coosner
2023-09-12
Sealed classes in Java are a way to control inheritance. This is a new feature in Java 17 and provides a cleaner approach than using access modifiers.
Coding matters: Slow-motion apocalypse
Jacqui Coosner
2023-09-07
It was a double-whammy in SA this week: stage 6 load-shedding and fuel price hikes. It’s like a slow-motion apocalypse that’s developing our prepper skills. Problem-solving and basic maths are skills every survivalist needs.