Welcome to northCoder

A small demo app showing some features of Spring Boot for handling a Thymeleaf template, a JSON request, using Spring JdbcTemplate, with some Java records, lambdas and streams. The demo uses a server-side DataTable for the demo. Not intended for production use.

A very basic Maven-based set-up for a Jakarta EE 9 web app (servlet) running on Tomcat 10, using NetBeans 13.

Two different configurations for my SSL certificate: one for Tomcat and another for embedded Jetty.

Because I can never remember what the abbreviations mean.

A simple-looking piece of code which results in something other than a list of Integer values being stored in a List<Integer> object.

Some notes to self about inaccuracies in floating point values.

I recently needed to convert text files created by one application into a completely different format, to be processed by a different application. The source files did not have line terminators. In some cases, the files were too large to be read into memory (without causing resource problems). A small Python script to the rescue - during which I learned about callables and sentinels.

Parsing a CSV file is a simple task, with great library support. This short example uses Commons CSV, together with Java streaming techniques. It also uses an enum, a lambda, a static factory method, a method reference, and other techniques. In other words, a combination of different tools, with some notes to help me remember it all.

Quick note on the syntax for using control characters in bash commands…

Why is the data in one of my fields being truncated to 4,000 characters when I read from a data source or via a lookup?