Update README.md

Author: divScorp

README.md

@@ -1,13 +1,18 @@
 # Java Practice Programs 
 
 1. Basic Programs
-2. Strings
+2. Math Programs, Bit Manipulation 
 3. Pattern Program
 4. Object Oriented Programming Concepts Examples.
    (Class and Objects, Inheritence,Polymorphism, Abstraction, Encapsulation)
 5. Interface Examples
-6. Design Patterns - Factory, Singleton, Observer, Decorator  
+6. Design Patterns - 
+      - Factory design pattern
+      - Singleton design pattern
+      - Observer design pattern
+      - Decorator design pattern
 7. String Class 
 8. Wrapper Classes.
 9. Comparator and Comparable interface
-10.Arrays
+10.Exception Handling
+11. Generics