Java Generics is one of the MOST important Java concepts. If you understand Generics properly: collections become safer code becomes reusable compile-time bugs reduce dramatically A generic type is a generic class or interface that is parameterized over types. What Are Generics? Generics allow classes, interfaces, and methods to work with: different data types safely without rewriting code. The Diamond In Java SE 7 and later, you can replace the type arguments required to invoke the constructor of a generic class with an empty set of type arguments (<>) as long as the compiler can determine, or infer, the type arguments from the context. This pair of angle brackets, <>, is informally called the diamond. For example, you can create an instance of Box with the following statement: Box < Integer > integerBox = new Box <>(); Enter fullscreen mode Exit fullscreen mode Generic Class class Box < T > { T value ; void set ( T value ) { this .…