Strings and Things - Java - page 118

/** Where the output goes */
PrintWriter out ;

/** If files present, format each, else format the standard input. */
public public static static void void main ( String [] av ) throws throws IOException {

iif ( av . length == 0 )
new

new Fmt ( System . in ). format ();

else else for ( String name : av ) {

new

new Fmt ( name ). format ();

}

}

public public Fmt ( BufferedReader inFile , PrintWriter outFile ) {

this this . in = inFile ;

this this . out = outFile ;

}

public public Fmt ( PrintWriter out ) {

this this ( new new BufferedReader ( new new InputStreamReader ( System . in )), out );

}

/** Construct a Formatter given an open Reader */
public public Fmt ( BufferedReader file ) throws throws IOException {

this this ( file , new new PrintWriter ( System . out ));

}

/** Construct a Formatter given a filename */
public

public Fmt ( String fname ) throws throws IOException {

this this ( new new BufferedReader ( new new FileReader ( fname )));

}

/** Construct a Formatter given an open Stream */
public public Fmt ( InputStream file ) throws throws IOException {

this this ( new new BufferedReader ( new new InputStreamReader ( file )));

}

/** Format the File contained in a constructed Fmt object */
public public void void format () throws throws IOException {

String line ;
StringBuilder outBuf = new new StringBuilder ();

while while (( line = in . readLine ()) != null null ) {

iif ( line . length () == 0 ) { // null line
out . println ( outBuf ); // end current line
out . println (); // output blank line
outBuf . setLength ( 0 );
} else else {