1. Basic Programs
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 design pattern
   • Singleton design pattern
   • Observer design pattern
   • Decorator design pattern
7. String Class
8. Wrapper Classes.
9. Comparator and Comparable interface 10.Exception Handling
10. Generics

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