Java Modifiers
Categories: Java 8(JDK1.8)
Like other languages, it is possible to modify classes, methods, etc., by using modifiers. There are two categories of modifiers −
Access Modifiers − default, public , protected, private
Non-access Modifiers − final, abstract, strictfp
We will be looking into more details about modifiers in the next section.
Java Variables
Following are the types of variables in Java −
Local Variables
Class Variables (Static Variables)
Instance Variables (Non-static Variables)
Java Arrays
Arrays are objects that store multiple variables of the same type. However, an array itself is an object on the heap. We will look into how to declare, construct, and initialize in the upcoming chapters.
Java Enums
Enums were introduced in Java 5.0. Enums restrict a variable to have one of only a few predefined values. The values in this enumerated list are called enums.
With the use of enums it is possible to reduce the number of bugs in your code.
For example, if we consider an application for a fresh juice shop, it would be possible to restrict the glass size to small, medium, and large. This would make sure that it would not allow anyone to order any size other than small, medium, or large.