Name
PrintStream
Synopsis
PrintStream
is an OutputStream
subclass
that contains methods that convert Java primitive types and objects into a
printable format before writing them to an underlying
OutputStream
.
The overloaded variations of the print()
method handle
primitives of type boolean
, char
,
char[]
, int
, long
,
String
and Object
. The string
representation of an Object
is obtained from its
toString()
method. The println()
methods behave in the same way as print()
, but follow
their output with a newline character.
The System.out
and System.err
variables
hold instances of PrintStream
. Because streams of this type
are often used when inserting debugging or tracing code where it would be
inconvenient to catch exceptions, the print()
and
println()
methods do not throw an
IOException
if an error is detected. Instead, they set
an internal error state that can be checked by calling the
checkError()
method.
public class PrintStream extends OutputStream { // Public Constructors public PrintStream( OutputStream out); // Public Instance Methods public boolean checkError(); public void print( long l); public void print( int i); public void print( char[] s); public void print( Object obj); public void print( String s); public void print( char c); public void print( boolean b); public void println(); public void println( long x); public void println( int x); public void println( Object
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