Oguzhan Acargil

Below xsl will sort your xml document by eventId; i agree with above who thinks xsl is better solution instead of DOM parsing.

<?xml version="1.0"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:template match="/"> <catalog> <xsl:for-each select="CalendarManagement_Peers/EventManagement"> <xsl:sort select="eventId"/> <xsl:copy-of select="."/> </xsl:for-each> </catalog> </xsl:template> </xsl:stylesheet>

Your code is completely legal and what you say is totally true. I think You misunderstood; the corresponding figure in the book is mentionaning about the code snippet below.

class A { final int x = 4; void method() { x = 5;// THIS IS INVALID; SINCE FINAL VARIABLES ARE NOT SET AFTER INITIALIZATION System.out.println(x); } }

Jeet Jain wrote:But thats exactly my problem. The format method() you specified (same as in API) above takes 3 parameters but my format() calls with 1 parameter.

NumberFormat doesn' t override format(Object), thus we must look at the parent class (Format) implementation. In that class, format(object) method calls an its abstract method (that must be implemented by subclass->NumberFormat ). The abstract method implementation of NumberFormat is at my previous post. ;)

Format class' abstract method:
public abstract StringBuffer format(Object obj,StringBuffer toAppendTo, FieldPosition pos);

Below code snippet is run; when nf.format(s) is called. As you can see, Long, Short, Integer, Byte, AtomicInteger and AtomicLong is expected by this method, thus you get an IllegalArgumnentException with specified message at runtime.

public StringBuffer format(Object number, StringBuffer toAppendTo, FieldPosition pos) { if (number instanceof Long || number instanceof Integer || number instanceof Short || number instanceof Byte || number instanceof AtomicInteger || number instanceof AtomicLong || (number instanceof BigInteger && ((BigInteger)number).bitLength() < 64)) { return format(((Number)number).longValue(), toAppendTo, pos); } else if (number instanceof Number) { return format(((Number)number).doubleValue(), toAppendTo, pos); } else { throw new IllegalArgumentException("Cannot format given Object as a Number"); } }

I' ve tried, it works with a file on remote machine at network. The exception is pointing your credentials on the remote machine. Do you have access to write on file?

Try to google Template pattern...

A subclass implements abstract methods. In order to access non abstract methods in an abstract class, you have to intiate it with a subclass. Thats way there is no problem.

I wish it is clear