This App covers the following topics in Java programming language.

Core Java: Getting Started
Java Introduction
Java Development Environment
Your First Java Program
Java Virtual Machine
Java Data Types And Operators
Java Conditional Statements
Java Loops
Arrays
String Operations
Java Packages

Java Object Oriented Programming
Java Classes
Java Inheritance
Java Encapsulation
Java Polymorphism
Java Interface
Java Abstract Class
Java static keyword

Core Java: Advanced Topics
Java Exception Handling
Java Generics
Java Multithreading
Java Concurrency
Java I/O Classes
Java Files I/O
Java NIO
Java Serialization
Java JDBC
Java Networking
Java Annotations

Core Java: Collections
Collections Introduction
List Interface and Implementation
Set Interface and Implementation
Map Interface and Implementation
Queue and Deque