Please help me... i need some code

Question

Hi, i am new to Java programming, but i have a dillema. I am trying to teach myself how to use Link Lists, and have been successful in the implementation, except for adding code to delete a node. If someone would please email me to help, i would really appreciate it. I will send my code i have so far, and i just need someone to write a delete method for me. Please help, i am so frustrated, i just want to see a working example. thanks. my email address is [email protected]
Thanks in advance.

Answer 1

Ok, good idea. I am writing a program that adds 7 CD objects to a LinkList, and then prints the list. Then it removes any two, and prints the list again. I have three classes though, so ill try to make it as readable as possible:
Here is the class which sets up the Compact disc object:
public class CompactDisc
private String title
// Sets up the new CompactDisc with its title.
public CompactDisc (String newTitle)
title = newTitle;
// Returns this CD as a string.
public String toString ()
return title;
Here is the class with the CD list:
public class CDList
private CDNode list;
// Sets up an initially empty list of cds
public CDList()
list = null;
// Creates a new CDNode object and adds it to the end of
// the linked list.
public void add (CompactDisc cd)
CDNode node = new CDNode (cd);
CDNode current;
if (list == null)
list = node;
else
current = list;
while (current.next != null)
current = current.next;
current.next = node;
public void delete(CompactDisc cd)
// HERE IS WHERE I NEED THE CODE!!!!
// Returns this list of CDs as a string.
public String toString ()
String result = "";
CDNode current = list;
while (current != null)
result += current.compactdisc + "\n";
current = current.next;
return result;
// An inner class that represents a node in the CD list.
// The public variables are accessed by the CDList class.
private class CDNode
public CompactDisc compactdisc;
public CDNode next;
// Sets up the node
public CDNode (CompactDisc CD)
compactdisc = CD;
next = null;
And here is the Driver Class:
public class CDRack
// Creates a CDList object, adds several CDs to the
// list, then prints it.
public static void main (String[] args)
CDList rack = new CDList();
rack.add (new CompactDisc("The Four Seasons")); // Vivaldi
rack.add (new CompactDisc("Caught Somewhere In Time")); // Iron Maiden
rack.add (new CompactDisc("New York City Underground Mix")); // Louie Devito
rack.add (new CompactDisc("Whoracle")); // In Flames
rack.add (new CompactDisc("Straight Outa' Compton")); // NWA
rack.add (new CompactDisc("Elegy")); // Amorphis
rack.add (new CompactDisc("Butterfly")); // Mariah Carey
System.out.println (rack); // initially print the entire list
System.out.println ("Deleting a node from the list");
// code goes here to delete a node (e.g.. rack.delete(somenode); )
System.out.println(rack); print the list with two nodes deleted
Please help me with this. I would prefer if someone could just add the method and corresponding call to make the program delete. Then i would observe the code, and hopefully learn something. thanks.