public abstract class InputStream extends Object
This abstract class is the superclass of all classes representing an input stream of bytes.public abstract class Writer extends Object
Abstract class for writing to character streams.摘自JDK documents
This abstract class is the superclass of all classes representing an input stream of bytes.public abstract class Writer extends Object
Abstract class for writing to character streams.摘自JDK documents
inputStream/OutputStream为字节输入/输出流