Introduction
Java IO streams are a mechanism in Java for inputting and outputting data. It is a general-purpose way to read and write various types of data, including text, binary, and objects. Java IO streams can read data from files, network connections, memory, and other data sources, and write data to files, network connections, memory, and other data targets.
Classification
Java IO streams are divided into two types: byte streams and character streams. Byte streams read and write data in bytes, while character streams read and write data in characters. Byte streams are suitable for processing binary data, such as images, audio, and video files, while character streams are suitable for processing text data, such as text files and HTML files.
Java IO streams can also be divided into input streams and output streams. Input streams are used to read data from data sources, while output streams are used to write data to data targets. Input and output streams can be combined to enable complete reading and writing of data.
Java IO streams can also be divided into synchronous streams and asynchronous streams according to data processing methods. Synchronous streams block threads while reading or writing data until the data is read or written. Asynchronous streams do not block threads, but handle data reading and writing through callback functions.
What data can be processed
Java IO streams provide a rich set of classes and methods to handle various types of data. For example, the FileInputStream and FileOutputStream classes can be used to read and write file data, the ByteArrayInputStream and ByteArrayOutputStream classes can be used to read and write memory data, and the Socket and ServerSocket classes can be used to read and write network data.
Summarize
Java IO streams are a very important part of Java, which provide a flexible and versatile way to read and write various types of data. Proficiency in Java IO streams is very important for developing efficient and reliable Java applications.