A quick recap of Java

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.

  1. Java basics: data types, variables, operators, control structures, and loops
  2. Object-oriented programming concepts: classes, objects, inheritance, polymorphism, and interfaces
  3. Exception handling: try-catch blocks, throw and throws keywords, and custom exceptions
  4. Collections: ArrayList, LinkedList, HashMap, and HashSet
  5. Input and output operations: reading and writing files, standard input/output streams, and serialization
  6. Multithreading: threads, synchronization, and concurrency issues
  7. Network programming: sockets, client-server communication, and HTTP protocols
  8. JavaFX: graphical user interface (GUI) development using JavaFX
  9. JDBC: Java Database Connectivity, accessing databases using Java
  10. Spring framework: a widely used Java application framework for building enterprise applications
  11. Hibernate: an object-relational mapping framework for Java
  12. Java Servlets: server-side programming for web applications
  13. Java Server Pages (JSP): web application development using Java
  14. RESTful web services: creating web services using Java
  15. Unit testing frameworks: JUnit and TestNG for writing and executing unit tests in Java.