Have you ever had the need to build a comma-separated list of values from a list or an array in Java or wanted to create a file path using concatenated folder names and a file path delimiter? Well, in the article Cocatenating Strings in Java 8, I have described a convinient way to use Java 8 APIs to do the job.
This not only reduces your development time and prevents additional errors, but it also let's you write more readable and understandable code. But what exactly happened since Java 9 was released, and does it apply to the code presented in the cases described in the aforementioned article.