What is the method of stream processing in Java?

In Java, there are methods for stream processing that involve using InputStream and OutputStream for byte streams, as well as using Reader and Writer for character streams. Additionally, there are convenient utility classes like BufferedReader and BufferedWriter that can improve the efficiency of stream processing, as well as stream processing frameworks like Apache Commons IO and Guava that can simplify stream operations. Java 8 introduced the Stream API, which provides a more convenient and flexible way to handle collection data streams.