Convert Java Object (POJO) To and From JSON with Gson
The JSON format is one of the most popular ways to serialize data. Knowing how to read and write it is an important skill for any programmer. There are a couple of Java libraries that can parse JSON, but in this tutorial, we'll focus on an open-source project developed by...
Java: Check if String is Null, Empty or Blank
In Java, there is a distinct difference between null, empty, and blank Strings. An empty string is a String object with an assigned value, but its length is equal to zero. A null string has no value at all. A blank String contains only whitespaces, are is neither empty nor...