Tag: Java

Learn sockets and URL connections for network communication in Java.

Send HTTP GET/POST requests with java.net.http.HttpClient.

Process collections declaratively with map, filter, and reduce.

Handle missing values with Optional instead of returning null.

Work with modern java.time types: LocalDate, LocalDateTime, and Duration.

Create, read, and write files with java.nio.file and IO APIs.

Read text files fully or line-by-line and append content safely.

Convert objects to byte streams with Serializable (and know safer alternatives).

Define a fixed set of constants with enum types.

Write concise anonymous functions with lambda syntax.