10-Day Class (total hours will be 10 hours). The charges are 1000 per class and 10000 for the whole class. Topics we cover ✅ 1. Java Basics Difference between JDK, JRE, JVM Java compilation and execution process Java program structure (class, main, System.out.println) Data types, variables, type casting Operators and control flow (if, switch, loops) ✅ 2. Object-Oriented Programming (OOP) Class and Object Inheritance (single, multilevel, hierarchical) Polymorphism (method overloading/overriding) Abstraction (abstract classes, interfaces) Encapsulation Access Modifiers (private, protected, default, public) ✅ 3. Exception Handling try-catch-finally throws and throw Checked vs Unchecked exceptions Creating custom exceptions ✅ 4. Java Collections Framework List, Set, Map (e.g., ArrayList, HashSet, HashMap) Iterator, enhanced for-loop Sorting using Comparable and Comparator Collection utility methods (Collections.sort(), Collections.reverse()) ✅ 5. Java 8+ Features Lambda Expressions Functional Interfaces (Predicate, Consumer, etc.) Streams API (filter, map, collect) Optional Class Method references ✅ 6. Multithreading & Concurrency Creating threads (Thread, Runnable) synchronized keyword Thread lifecycle and state ExecutorService, Callable, Future Inter-thread communication (wait, notify, notifyAll) ✅ 7. File I/O and Serialization FileReader, BufferedReader, FileWriter, Scanner Reading/Writing binary files Object Serialization and Deserialization ✅ 8. Inner Classes Static vs non-static inner classes Anonymous inner classes Lambda for functional interfaces ✅ 9. Packages and Modularization Creating and importing packages import static Java Modules (Java 9+) ✅ 10. Java Memory Management Stack vs Heap Garbage Collection basics Memory leaks and optimization 🧠 Bonus: For teaching, interviews, or freelancing Real-world examples using OOP and Collections Case studies like Library Management System, Student Portal, Online Store Code structuring and best practices