IO lib
Cấp cao
BufferReader
Đọc từ 1 reader khác
Doi tuong co san
System.in
System.out
System.err
Text type
Writer
PrintWriter
Đưa dữ liệu Unicode ra ngoài
StringWriter
PipedWriter
OutputStreamWriter
CharArrayWriter
FileWriter
Unicode
Reader
FileReader
exception FileNotFoundException
Only ASCII for void read()
StringReader
PipedReader
InputStreamReader
Đọc từ InputStream ->character
new BufferedReader(new InputStreamReader)
FilterReader
CharArrayReader
byte type
stream: chieu fai k xac dinh
InputStream
FileInputStream
Doc text, unicode
PipedInputStream
SequenceInputStream
StringBufferInputStream
ByteArrayInputStream
FilterInputStream
PushBackInputStream
LineNumberInputStream
DataInputStream
BufferedInputStream
OutputStream
FilterOutputStream
BufferedOutputStream
PrintStream
DataOutputStream
FileOutputStream
Ghi text, unicode
