• Variables • Methods • Class • Object • Coding standards • Main methods • packages • imports • Access specifiers (Public, Private, protected and default)

• Inheritance • Abstraction • Encapsulation • Polymorphism (Method Over loading and Method Overriding ) • Constructors

• Abstract class • Interfaces • var-args • Inner classes • super and this key words • final key word

Object class • Garbage Collector • String • String buffer and String builder • enum • Wrapper classes, • Auto boxing, Auto unboxing • Object Type casting

Exception overview • Default Exception Handler • Handling Exception using try and catch • finally • throws • throw • Custom Exceptions

• Threads overview • Thread creation • Thread Life cycle • Threads class methods (priority, yeild, join) • Synchronization • Intra thread communication (Wait, notify methods)

• Collection framework interfaces List and set overview • List implemented classes (ArrayList,Vector...) • Set implemented Classes (HashSet,TreeSet...) • Iterator , ListIterator and for each • Comparator and Comparable interface • Map implemented classes (HashMap,Hashtable. ) • Collections class • Generics

• Create File , Directory.. • Read and Write file data • I/O Streams • Serialization Java 8,9,10 Features like Lambda expression, functional interface, etc….

• REST API Training Course • Vocabulary: The Primer's Primer • REST • What REST Is Not • REST Services • Mapping CRUD To HTTP • Conventions API URL structure • RESTFUL HTTP Methods • Passing Parameters • HTTP Response Codes • Return Values • JSON - a universal format for the exchange of information • JSON - what does it look like? • JSONP & CORS • Passing Parameters (part 2) • More Simple APIs • Examples of popular APIs • Creating a REST API • Business Object - mapping the class • Controller methods • Representation of a business object as JSON • HTTP Headers - as metadata • Testing the API using Postman • Authentication mechanisms

• Introduction to spring boot • Building Spring Boot Application • Rest Annotation with In Memory Database & CRUD Operations • Rest Annotation with Relation DB • Spring JPA Repository Concepts • Actuator Concepts • Spring Boot Custom Logging • Spring Boot Profile Components • Auto Configuration • Integration with Spring Web • Spring Boot Security • Database Concepts • Core Concepts • Micro Services • Micro Services Design Considerations • Fault Tolerance Concepts • API Gateway • Messaging Queue Concepts • Oatuh2 Concepts