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Programming Leftovers

Submitted by Roy Schestowitz on Thursday 31st of March 2022 05:22:49 AM Filed under
Development

  • Mutator Method in Java

    In the English dictionary, to mutate means to have a new form. And so, a mutator, though not found in the English dictionary, means something that causes a change into a new form. A private variable is a field or property of a class in Java. There is no predefined method called mutator in Java. Instead, a mutator is a method in a class, and this method is meant to change the value of a private variable of the class. By convention, the programmer should begin the method name with “set”. So the method may be something like setAge(), setPrice(), setName(), etc.

  • Mapping with gnuplot, part 2

    The first part of this series appeared back in 2018. It describes how you can use gnuplot to build a simplified GIS. I wasn't intending to do any more with this idea, but I was tinkering with animated map GIFs of Tasmania and realised that the gnuplot approach had some advantages. This post and the next one explain what I did. You don't need to refer to that 2018 post, since I'll repeat and update the information here.

  • There’s More to Design Than Data and Rationality

    While the author suggests there’s more to math than “rigour and proofs”, I tangentially suggest there’s more to design than data and rationality. Design can be much richer when intuition and the intangible is factored into decision making. Too often, design is boiled down to what appears to be a material science: create something—anything really—put metrics in place to measure its success, then determine its ultimate value by purely numerical outcomes.

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today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

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  • How To Install MongoDB on AlmaLinux 9 - idroot

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