drainTo

drainTo is a method commonly found in programming languages, particularly those used for stream processing or data manipulation. Its primary function is to transfer all data from a source stream to a destination stream and then close the destination stream. This operation is often used for efficiently moving content from one location to another without requiring manual buffer management. The source stream is typically left open after the operation, allowing for further reading if needed, while the destination stream is guaranteed to be closed. This ensures that all buffered data is flushed and resources are released. The drainTo method is part of Java's IO utilities, but similar concepts exist in other programming paradigms. It simplifies the process of reading everything from an input stream and writing it to an output stream, making code more readable and less prone to resource leaks. When using drainTo, it is important to be aware that the source stream's position will be advanced to its end.