Java is a widely used programming language that was developed in the mid-1990s by Sun Microsystems. Java is a general-purpose programming language, which means it can be used for a wide variety of applications, including desktop applications, mobile applications, web applications, and server-side applications.
- Java basics: data types, variables, operators, control structures, and loops
- Object-oriented programming concepts: classes, objects, inheritance, polymorphism, and interfaces
- Exception handling: try-catch blocks, throw and throws keywords, and custom exceptions
- Collections: ArrayList, LinkedList, HashMap, and HashSet
- Input and output operations: reading and writing files, standard input/output streams, and serialization
- Multithreading: threads, synchronization, and concurrency issues
- Network programming: sockets, client-server communication, and HTTP protocols
- JavaFX: graphical user interface (GUI) development using JavaFX
- JDBC: Java Database Connectivity, accessing databases using Java
- Spring framework: a widely used Java application framework for building enterprise applications
- Hibernate: an object-relational mapping framework for Java
- Java Servlets: server-side programming for web applications
- Java Server Pages (JSP): web application development using Java
- RESTful web services: creating web services using Java
- Unit testing frameworks: JUnit and TestNG for writing and executing unit tests in Java.