IO
| 分类 | 字节流输入流 | 字节输出流 | 字符输入流 | 字符输出流 |
|---|
| 抽象基类 | InputStream | OutputStream | Reader | Writer |
| 访问文件 | FileInputStream | FileOutputStream | FileReader | FileWirter |
| 访问数组 | ByteArrayInputStream | ByteArrayOutputStream | CharArrayReader | CharArrayWriter |
| 访问管道 | PipedInputStream | PipedOutputStream | PipedReader | PipedWriter |
| 访问字符串 | | | StringReader | StringWriter |
| 缓冲流 | BufferedInputStream | BufferedOutputStream | BufferedReader | BufferWriter |
| 转换流 | | | InputStreamReader | OutputStreamWriter |
| 对象流 | ObjectInputStream | ObjectOutputStream | | |
| FilterInputStream | FilterOutputStream | FilterReader | FilterWriter |
| 打印流 | | PrintStream | | PrintWriter |
| 推回输入流 | PushbackInputStream | | PushbackReader | |
| 特殊流 | DataInputStream | DataOutputStream | | |
