What are the advantage of generics?

Generics was introduced in JAVA 5 version.
It has the following advantages

1. Stronger type checks at compile time:-
   A Java compiler applies strong type checking to generic code and issues errors if the code violates type safety. Fixing compile-time errors is easier than fixing run-time errors, which can be difficult to find.                                                                                                                                         
2. Elimination of casting:-
   The following code snippet requires casting due to absence of  generics

   List list = new ArrayList();
   list.add("hello");
   String s = (String) list.get(0);//type casting
   

   with generics, the code does not require type casting

   List<String> list = new ArrayList<String>();
   list.add("hello");
   String s = list.get(0);   // no need of casting                        

3. Enabling programmer to implement generic algorithm:-

         Which can be

         Generic CLASS declaration

         Generic INTERFACE declaration

         Generic METHOD declaration

         Generic CONSTRUCTOR declaration