Today's Work:
- Practiced Data Structures, Searching, and Algorithmic problem solving:
- Efficient searching with Binary Search on sorted datasets
- 2D grid matrix traversals and row/column aggregations
- Two-pointer techniques for pair searching and boundary area optimization
- Sliding window patterns for fixed and dynamic range evaluations
- HashSet lookups for constant-time search optimizations
Next Session Plan:
- Continue with upcoming semester data structures and algorithm topics.
Issues Faced:
- None
Today's Work:
- Worked on Real-World OOP System Design and workflow coordination:
- Modeling multi-entity systems with state management and business rules
- Booking, reservation, and tiered billing systems (Hotels, Vehicle Rentals)
- Workflow lifecycles and queue processing (Leave Requests, Exam submissions, Laundry queues)
- Clean object collaboration and separation of concerns
Next Session Plan:
- Transition to core algorithms, data structures, and problem-solving techniques in Session 7.
Issues Faced:
- None
Today's Work:
- Covered Abstraction and Interfaces in Java:
- Designing contracts with interfaces and implementing multiple behaviors
- Abstract classes as base templates with shared logic and hook methods
- Loose coupling and coding to interfaces rather than concrete implementations
- Practical system models including equipment routines, delivery fleets, and smart assistants
Next Session Plan:
- Work on end-to-end real-world object-oriented system design in Session 6.
Issues Faced:
- None
Today's Work:
- Explored Object-Oriented Inheritance and Hierarchy structures:
- Subclassing, super constructor invocations, and method overriding
- Multi-level class hierarchies and tier-based specializations
- Dynamic method dispatch and polymorphic runtime behavior
- Structuring discount, fine, and membership systems using inheritance trees
Next Session Plan:
- Move on to abstract classes and interface contracts in Session 5.
Issues Faced:
- None
Today's Work:
- Learned and applied Java Access Modifiers and Encapsulation principles:
- Scope and boundaries of private, default, protected, and public access levels
- Data hiding and defensive encapsulation using getter/setter constraints
- Designing JavaBeans with validated properties
- Creating immutable objects, defensive copying of arrays, and wither methods
- Safe object handling, static initializers, and instanceof type verification
Next Session Plan:
- Explore inheritance, method overriding, and class hierarchies in Session 4.
Issues Faced:
- None
Today's Work:
- Solved 5 Session 2 Category B class problems reinforcing basic constructs:
- Library Book Cataloguing (Constructor chaining with this())
- Payroll Batch Bonus Round (Resolving name clash with this.)
- Late Fees — Skip the On-Time Accounts (Locking formulas with final methods)
- One-Time College Setup, Many Students (Static block initialization)
- Account Batch Payments (Polymorphic dispatch using instanceof)
Next Session Plan:
- Begin solving Session 2 take-home assignment problems.
Issues Faced:
- None
Today's Work:
- Set up the semester repository and branching structure.
- given 5 questions to solve.
- 1- From prallel array to a class.
- 2- Encapsulated Mess-Card Wallet.
- 3- Overloaded Constructor for a Course.
- 4- Reference Copies and a Shared ID card.
- 5- Instance vs Static(Splitting a class Correclty).
Next Session Plan:
- Begin solving the first session's problems.
Issues Faced:
- None