What is null? null is a very important concept in Java. The original intention of inventing null was to denote the absence of something. But over the years it has troubled Java developers with the nasty NullPointerException. Before we start, let’s recall and understand what is variable and what is a value? Variables are basically …
When you declare a variable or a method as static, it belongs to the class, rather than a specific instance. This means that only one instance of a static member exists, even if you create multiple objects of the class, or if you don’t create any. It will be shared by all objects. The static …
The final keyword in java is used to restrict the user. The java final keyword can be used in many context. Final can be: variable method class The final keyword can be applied with the variables, a final variable that have no value it is called blank final variable or uninitialized final variable. It can be initialized …
