public class SafeOutputStream extends OutputStream
new SafeOutputStream( null )
).
new SafeOutputStream( System.out )
).
new SafeOutputStream( new FileOutputStream( ... ) )
).
finalize
method.Modifier and Type | Field and Description |
---|---|
static OutputStream |
DEFAULT_STREAM
This stream can be used as default stream.
|
Modifier and Type | Method and Description |
---|---|
void |
close()
Closes the
SafeOutputStream by closing the OutputStream
this stream was constructed of. |
boolean |
doesNothing()
Indicates whether the instance is doing something or not.
|
protected void |
finalize() |
void |
flush() |
OutputStream |
getOutputStream()
Returns the internal used
OutputStream . |
static SafeOutputStream |
getSafeOutputStream(OutputStream out)
This method returns an instance of
SafeOutputStream for a given OutputStream . |
void |
write(int b) |
void |
write(Object s)
Writes an
Object using Object.toString() . |
void |
writeln()
Writes a line break.
|
void |
writeln(Object s)
Writes an
Object and a line break. |
write, write
public static final OutputStream DEFAULT_STREAM
public static SafeOutputStream getSafeOutputStream(OutputStream out)
SafeOutputStream
for a given OutputStream
.out
- the OutputStream
SafeOutputStream
for a given OutputStream
.public void close() throws IOException
SafeOutputStream
by closing the OutputStream
this stream was constructed of. If this SafeOutputStream
was
constructed using System.out
this OutputStream
will
be closed. No outputs via System.out
will be possible any
more.close
in interface Closeable
close
in interface AutoCloseable
close
in class OutputStream
IOException
- if something went wrong in closing the output streampublic boolean doesNothing()
true
if the internal OutputStream
is
null
public void flush() throws IOException
flush
in interface Flushable
flush
in class OutputStream
IOException
public OutputStream getOutputStream()
OutputStream
.OutputStream
public void writeln() throws IOException
IOException
- if something went wrongwrite(int)
public void writeln(Object s) throws IOException
Object
and a line break.s
- the Object
to be writtenIOException
- if something went wrongwrite(int)
,
Object.toString()
public void write(Object s) throws IOException
Object
using Object.toString()
.s
- the Object
to be writtenIOException
- if something went wrongwrite(int)
public void write(int b) throws IOException
write
in class OutputStream
IOException
protected void finalize() throws IOException
finalize
in class Object
IOException