Programming

The Law of Demeter is a guideline for software design. It is also known as the principle of least knowledge. Simply put: “*Only talk to your immediate friends, don’t talk to strangers*.”

We often see the terms “Architectural Style”, “Architectural Pattern”, “Design Pattern” and “Programming Idiom”. What do they mean? What are the differences between them?

A fluent interface in Java makes it easier to use a class. Fluent interfaces make our Java code more readable. Lewis looks at some Java examples of fluid interfaces.

You might have heard the terms: little-endian, big-endian or endianness. Lewis provides a simple explanation of the difference between little-endian and big-endian.

The Java Virtual Machines manages memory. PermGen is part of the non-heap memory. From Java 8, PermGen was replaced by a new memory area called MetaSpace. Lewis explains the difference, and reminds developers to monitor memory usage.

Lewis shares some tips for Java programmers. These are reminders that he often repeats on every course. They are simple, obvious, and yet still sometimes forgotten. These apply to almost every programmer, so read on even if you don’t code in Java.

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.

A quick look at off-by-one errors and fence-post errors.

Ever wondered why Java arrays start from zero? Lewis explains

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.