? NullPrintStream
java.lang.Object
java.io.OutputStream
java.io.FilterOutputStream
java.io.PrintStream
org.apache.commons.io.output.NullPrintStream
- ????????:
Closeable
,Flushable
,Appendable
,AutoCloseable
Writes all data to the famous /dev/null.
This print stream has no destination (file/socket etc.) and all bytes written to it are ignored and lost.
- ???????:
- 2.7
-
????
????????? java.io.FilterOutputStream
out
-
?????
??? -
????
??????? java.io.PrintStream
append, append, append, checkError, clearError, close, flush, format, format, print, print, print, print, print, print, print, print, print, printf, printf, println, println, println, println, println, println, println, println, println, println, setError, write, write, write, writeBytes
??????? java.io.OutputStream
nullOutputStream
-
??????
-
NULL_PRINT_STREAM
The singleton instance.
-
-
???????
-
NullPrintStream
public NullPrintStream()Constructs an instance.
-