public class NullWriter extends Writer
Writer
writes all data to the famous /dev/null.
This Writer
has no destination (file/socket etc.) and all
characters written to it are ignored and lost.
Modifier and Type | Field and Description |
---|---|
static NullWriter |
NULL_WRITER
A singleton.
|
Constructor and Description |
---|
NullWriter()
Constructs a new NullWriter.
|
Modifier and Type | Method and Description |
---|---|
Writer |
append(char c)
Does nothing - output to
/dev/null . |
Writer |
append(CharSequence csq)
Does nothing - output to
/dev/null . |
Writer |
append(CharSequence csq,
int start,
int end)
Does nothing - output to
/dev/null . |
void |
close() |
void |
flush() |
void |
write(char[] chr)
Does nothing - output to
/dev/null . |
void |
write(char[] chr,
int st,
int end)
Does nothing - output to
/dev/null . |
void |
write(int idx)
Does nothing - output to
/dev/null . |
void |
write(String str)
Does nothing - output to
/dev/null . |
void |
write(String str,
int st,
int end)
Does nothing - output to
/dev/null . |
public static final NullWriter NULL_WRITER
public NullWriter()
public Writer append(char c)
/dev/null
.append
in interface Appendable
append
in class Writer
c
- The character to writepublic Writer append(CharSequence csq, int start, int end)
/dev/null
.append
in interface Appendable
append
in class Writer
csq
- The character sequence to writestart
- The index of the first character to writeend
- The index of the first character to write (exclusive)public Writer append(CharSequence csq)
/dev/null
.append
in interface Appendable
append
in class Writer
csq
- The character sequence to writepublic void write(int idx)
/dev/null
.public void write(char[] chr)
/dev/null
.public void write(char[] chr, int st, int end)
/dev/null
.public void flush()
flush
in interface Flushable
flush
in class Writer
Writer.flush()
public void close()
close
in interface Closeable
close
in interface AutoCloseable
close
in class Writer
Writer.close()
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