What's new in Java 5 & 6 (Experience programming coming back)

All -
I've been away from Java for a year in the wonderful world of dynamic languages (ruby and python) but I've had 6+ years of Java coding experience. I've heard that Java 5 & 6 have added some pretty cool features like better for loops, block like structures, etc. I've been told that Java is starting to introduce features which give it a more "flexible" feel, similar to a dynamic language.
Anyway, for someone coming back, can anyone give me a quick list of the new WOW features in Java 5 & 6 that I should be looking to use?
Thanks,
Drew

Heh, not new but was a bit hopeful the the forum
environment had changed in the last yearMaybe if less people came and posted open-ended vague questions that they should have started looking with Google for information about so they could ask more specific questions.....
I mean I don't know. It was a dream I had once. Everyone was very nice here. People used google. Nobody pleaded for "teh codes". People used PreparedStatement. People stopped crossposting. Lazy students stopped lying.
It was amazing.

Similar Messages

What is new in Java syntaxes in new Java versions?

What is new in Java syntaxes in new Java versions?
What about this sentenses
1. for (int c:data), where data is array of integer
2. ArrayList<Object> () ...
3. Class<?>...
I can't find this syntaxes in my books and documentation...
And what Java version is latest?

dont crosspost
Edited by language police

What's new in Java 4

Anybody can quickly explain the things are added in Java 4 newly.
Thnx in advance.

Nothing's new in Java 4 because there is no Java 4.
Maybe you mean Java 5?
Or maybe you mean Java 1.4?
In either case, either the download page for that version, or the installation, should have release notes that answer your question.
In fact, here they are for Java 5:
http://java.sun.com/j2se/1.5.0/docs/relnotes/features.html

Java applet warning keeps coming back for signed applet

I have an applet signed with certificate issued by a public CA cert verisign. This applet prints document to the printer. When it loads everything looks good and checks on the screen and the user is prompted to allow access to the printer. Even, though the user selects "Allways allow this applet to print" the warning keeps coming back everytime the applet attempts to access the printer.
I notice other applets work correctly. I veriy the signed jar and it all looks correct every class file comes with smk marking.
What is going, can someone please help???
Manuel

I appreciate the help. but i was able to resolve the problem. Our web page called the applet print method directly from scripting. Apparently that causes the java plugin to warn the user every time.
To avoid this issue the new print method queues up a print job and a separate thread watches for the queue and picks up the job and prints it. In order to support the same original function, the new print method is syncronized and waits for the job to be queued before it returns.
Now, there are no warnings even the first time you use the applet.
[Here is another similar thread.|http://forum.java.sun.com/thread.jspa?forumID=63&threadID=524815]
Thanks,
Manuel

What is this 3D! Turbo Experience program?

what is this program and what does it do? I'm on a modem and was wondering if someone can explain what it's supposed to do before I download this 12MB program to try it out.
thanks for the input

Hi
I have an creative mx420, and i've just test it.
it works!!!
So it's not only for onboard video.
you must have a flash player installed or you're pc freezes (mine did) (flash player is included in install package)

New to JAVA, but old school to programming

Objects & Classes & Methods, Oh my!
I'm pretty new to java, but I've been programming in several languages over the years. I thought it was about time to update my skill set, especially with the job market as it is today. I wanted to go JAVA because it's not specific to any environment.
I picked up a begining JAVA book and was a little confused. When I was learning programming a program was called a program. a peice of code in a program called by a statement was called a subroutine (it was performed then control returned to the calling line and continued).
Now I'm trying to make sense of everything I have read so far and trying to relate it back to my old school of thinking. I was hoping it would make it easier to retain and I could expand it as I learn and possibly realize that it IS different. I know it's a new way of thinking, but stay with me for minute.
What I used to call a program is now a CLASS in JAVA (this can be a collection of code or other objects). A sub-routine in a CLASS is a Method. I know that the language part will come as I use it since I understand if's then's and whatever you use to gosub or goto, but I want to make sure I have down the lingo before I go to deep.

I have no idea how you can compare Java to Cobol.
DataFlex? How about that! In about '84 I switched to
DataFlex from dBaseII. In '91 DataFlex changed from
procedural to OOP. It took most of us at least a year
to adjust, and then some to write concrete code. It
was tough. They had bugs and we were limited with DOS.
BUT, it was a great OOP training experience. Anyhow,
needless to day Java is miles ahead on all fronts.Small world. I was stuck in the old DataFlex Ver 2.3 at that time. The company I worked for had the newer OOP package. I did get to work with it some, but not enough to become totally familiar with it. We started to move out of DataFlex towards PowerBuilder towards the end of 1995. I did get some OOP from that experience, but again only enough to learn about global variables, instance variables, and a few other items. I hoping that I will be able to get the solid OOP background that I need from JAVA since I hear through the grapevine that it may be a new tool that we will be looking at to enhance our programming. I was looking at PERL but even the PERL programmers we have agree that JAVA is more scalable.

What is the best IDE for database programming in java?

im just new to java, i have experience in powerbuilder and visual basic. Im looking for an IDE for JAVA Database Programming that have same ease of use of the GUI builder of visual basic and power of the Datawindow in Powerbuilder.
What is the best IDE for database programming in java?

hey sabre why not just help me? instead of posting
annoying replies. You want me to browse all the post
two weeks ago to find what im looking for. stoopsMost regulars to this forum find X-posting annoying. Since you are lazy and want me to search the posts of the last couple of week for you, I find you very annoying.

New TO JAVA Programming

Dear Forummembers,
I am student doing postgraduate studies in IT.i have some queries related to one of my programming staff.i am very much new into Java programming and i am finding it a bit difficult to handle this program.The synopsis of the program is given below -
You are required to design and code an object-oriented java program to process bookings for a theatre perfomance.
Your program will read from a data file containing specifications of the performance,including the names of the theatre, the play and its author and the layout of the theatre consisting of the number of seats in each row.
It will then run a menu driven operation to accept theatre bookings or display the current
status of seating in the theatre.
The name of the file containing the details of the performance and the theatre should be
provided at the command line, eg by running the program with the command:
java Booking Theatre.txt
where Theare.txt represents an example of the data file.
A possible data file is:
Opera
U and Me
Jennifer Aniston
5 10 10 11 12 13 14
The data provided is as follows
Line 1
Name of the Theatre
Line 2
Name of the play being performed
Line 3
Name of the author of the play being performed
Line 4
A list of the lengths (number of seats) of each row in the theatre, from front to
back.
The program must start by reading this file, storing all the appropriate parameters and
establishing an object to accept bookings for this performance with all details for the theatre
and performance.
The program should then start a loop in which a menu is presented to the user, eg:
Select from the following:
B - Book seats
T - Display Theatre bookings
Q - Quit from the program
Enter your choice:
And keep performing selected operations until the user�s selects the quit option, when the
program should terminate.
T - Display Theatre bookings
The Display Theatre Bookings option should display a plan of the theatre. Every available
seat should be displayed containing its identification, while reserved seats should contain an
Rows in each theatre are indicated by letters starting from �A� at the front. Seats are
numbered from left to right starting from 1. A typical seat in the theatre might be designated
D12, representing seat 12 in row D.
B - Book seats
The booking of seats is to offer a number of different options.
First the customer must be asked how many adjacent seats are
required. Then start a loop offering a further menu of choices:
Enter one of the following:
The first seat of a selected series, eg D12
A preferred row letter, eg F
A ? to have the first available sequence selected for you
A # to see a display of all available seats
A 0 to cancel your attempt to book seats
Enter your selection:
1. If the user enters a seat indentifier such B6, The program should attempt to
reserve the required seats starting from that seat. For example if 4 seats are
required from B6, seats B6, B7, B8 and B9 should be reserved for the customer,
with a message confirming the reservation and specifying the seats reserved..
Before this booking can take place, some testing is required. Firstly, the row
letter must be a valid row. Then the seat number must be within the seats in the
row and such that the 4 seats would not go beyond the end of the row. The
program must then check that none of the required seats is already reserved.
If the seats are invalid or already reserved, no reservation should be made and the
booking menu should be repeated to give the customer a further chance to book
seats.
If the reservation is successful, return to the main menu.
2. The user can also simply enter a row letter, eg B.IN this case, the program should
first check that the letter is a valid row and then offer the user in turn each
adjacent block of the required size in the specified row and for each ask whether
the customer wants to take them. Using the partly booked theatre layout above, if
the customer wanted 2 seats from row B, the customer should be offered first:
Seats B5 to B6
then if the customer does not want them:
Seats B10 to B11
and finally
Seats B11 to B12
If the customer selects a block of seats, then return to the main menu. If none are
selected, or there is no block of the required size available in the row, then report
that no further blocks of the required size are available in the row and repeat the
booking menu.
3. If the user enters a ? the program should offer the customer every block of seats
of the required size in the whole theatre. This process should start from the first
row and proceed back a row at a time. For example, again using the partially
booked theatre shown above, if the user requested 9 seats, the program should
offer in turn:
Seats A1 to A9
Seats C1 to C9
Seats C2 to C10
Seats E3 to E11
Seats E4 to E12
If the customer selects a block of seats, then return to the main menu. If none are
selected, or there is no block of the required size available in the whole theatre,
then report that no further blocks of the required size are available and repeat the
booking menu.
4. If the user enters a # the program should display the current status of the seating
in the theatre, exactly the same as for the T option from the main menu and then
repeat the booking menu.
5. If the user enters a 0 (zero), the program should exit from the booking menu back
to the main menu. If for example the user wanted 9 seats and no block of 9 was
left in the theatre, he would need to make two separate smaller bookings.
The program should perform limited data validation in the booking process. If a single
character other than 0, ? and # is entered, it should be treated as a row letter and then tested
for falling within the range of valid rows, eg A to H in the example above. Any invalid row
letters should be rejected.
If more than one character is entered, the first character should be tested as a valid row letter,
and the numeric part should be tested for falling within the given row. You are NOT
required to test for valid numeric input as this would require the use of Exception handling.
You are provided with a class file:
Pad.java
containing methods that can be used for neat alignment of the seat identifiers in the theatre
plan.
File Processing
The file to be read must be opened within the program and if the named file does not exist, a
FileNotFoundException will be generated. It is desirable that this Exception be caught and
a corrected file name should be asked for.
This is not required for this assignment, as Exception handling has not been covered in this
Unit. It will be acceptable if the method simply throws IOException in its heading.
The only checking that is required is to make sure that the user does supply a file on the
command line, containing details of the performance. This can be tested for by checking the
length of the parameter array args. The array length should be 1. If not, display an error
message telling the user the correct way to run the program and then terminate the program
System.exit(0);
The file should be closed after reading is completed.
Program Requirements
You are expected to create at least three classes in developing a solution to this problem.
There should be an outer driving class, a class to represent the theatre performance and its
bookings and a class to represent a single row within the theatre.
You will also need to use arrays at two levels. You will need an array of Rows in the Theatre
class.
Each Row object will need an array of seats to keep track of which seats have been reserved.
Your outer driving class should be called BookingOffice and should be submitted in a file named BookingOffice.java
Your second, third and any additional classes, should be submitted in separate files, each
class in a .java file named with the same name as the class
I am also very sorry to give such a long description.but i mainly want to know how to approach for this program.
also how to designate each row about it's column while it is being read from the text file, how to store it, how to denote first row as row A(second row as row B and so on) and WHICH CLASS WILL PERFORM WHICH OPERATIONS.
pls do give a rough guideline about designing each class and it's reponsibilty.
thanking u and looking forward for your help,
sincerely
RK

yes i do know that........but can u ppl pls mention
atleast what classes shud i consider and what will be
the functions of each class?No, sorry. Maybe somebody else will, but in general, this is not a good question for this forum. It's too broad, and the question you're asking is an overall problem solving approach that you should be familiar with at this point.
These forums are best suited to more specific questions. "How do I approach this homework?" is not something that most people are willing or able to answer in a forum like this.

New to Java and need help with this program..please!

I'd really appreciate any helpful comments about this program assignment that I have to turn in a week from Friday. I'm taking a class one night a week and completely new to Java. I'd ask my professor for help, but we can't call him during the week and he never answers e-mails. He didn't tell us how to call from other classes yet, and I just can't get the darn thing to do what I want it to do!
The assignment requirements are:
1. Change a card game application that draws two cards
and the higher card wins, to a Blackjack application
2. Include a new class called Hand
3. The Hand class should record the number of draws
4. The application should prompt for a number of draws
5. The game is played against the Dealer
6. The dealer always draws a card if the dealer's hand total is <= 17
7. Prompt the player after each hand if he wants to quit
8. Display the total games won by the dealer and total and the total games wond by the player after each hand
9. Display all of the dealer's and player's cards at the
end of each hand
10. Player has the option of drawing an additional card after the first two cards
11. The Ace can have a value of 11 or 1
(Even though it's not called for in the requirements, I would like to be able to let the Ace have a value of 1 or an 11)
The following is my code with some comments about a few things that are driving me nuts:
import java.util.*;
import javax.swing.*;
import java.text.*;
public class CardDeck
public CardDeck()
deck = new Card[52];
fill();
shuffle();
public void fill()
int i;
int j;
for (i = 1; i <= 13; i++)
for (j = 1; j <= 4; j++)
deck[4 * (i - 1) + j - 1] = new Card(i, j);
cards = 52;
public void shuffle()
int next;
for (next = 0; next < cards - 1; next++)
int rand = (int)(Math.random()*(next+1));
Card temp = deck[next];
deck[next] = deck[rand];
deck[rand] = temp;
public final Card draw()
if (cards == 0)
return null;
cards--;
return deck[cards];
public int changeValue()
int val = 0;
boolean ace = false;
int cds;
for (int i = 0; i < cards; i++)
if (cardValue > 10)
cardValue = 10;
if (cardValue ==1)     {
ace = true;
val = val + cardValue;
if ( ace = true && val + 10 <= 21 )
val = val + 10;
return val;
public static void main(String[] args)
CardDeck d = new CardDeck();
int x = 3;
int i;
int wins = 1;
int playerTotal = 1;
do {
Card dealer = (d.draw());
/**I've tried everything I can think of to call the ChangeValue() method after I draw the card, but nothing is working for me.**/
System.out.println("Dealer draws: " + dealer);
do {
dealer = (d.draw());
System.out.println(" " + dealer);
}while (dealer.rank() <= 17);
Card mine = d.draw();
System.out.println("\t\t\t\t Player draws: "
+ mine);
mine = d.draw();
System.out.println("\t\t\t\t\t\t" + mine);
do{
String input = JOptionPane.showInputDialog
("Would you like a card? ");
if(input.equalsIgnoreCase("yes"))
     mine = d.draw();
System.out.println("\t\t\t\t\t\t" + mine);
     playerTotal++;
     else if(input.equalsIgnoreCase("no"))
System.out.println("\t\t\t\t Player stands");
     else
System.out.println("\t\tInvalid input.
Please try again.");
I don't know how to go about making and calling a method or class that will combine the total cards delt to the player and the total cards delt to the dealer. The rank() method only seems to give me the last cards drawn to compare with when I try to do the tests.**/
if ((dealer.rank() > mine.rank())
&& (dealer.rank() <= 21)
|| (mine.rank() > 21)
&& (dealer.rank() < 22)
|| ((dealer.rank() == 21)
&& (mine.rank() == 21))
|| ((mine.rank() > 21)
&& (dealer.rank() <= 21)))
System.out.println("Dealer wins");
wins++;
     else
System.out.println("I win!");
break;
} while (playerTotal <= 1);
String stop = JOptionPane.showInputDialog
("Would you like to play again? ");
if (stop.equalsIgnoreCase("no"))
break;
if (rounds == 5)
System.out.println("Player wins " +
(CardDeck.rounds - wins) + "rounds");
} while (rounds <= 5);
private Card[] deck;
private int cards;
public static int rounds = 1;
public int cardValue;
/**When I try to compile this nested class, I get an error message saying I need a brace here and at the end of the program. I don't know if any of this code would work because I've tried adding braces and still can't compile it.**/
class Hand()
static int r = 1;
public Hand() { CardDeck.rounds = r; }
public int getRounds() { return r++; }
final class Card
public static final int ACE = 1;
public static final int JACK = 11;
public static final int QUEEN = 12;
public static final int KING = 13;
public static final int CLUBS = 1;
public static final int DIAMONDS = 2;
public static final int HEARTS = 3;
public static final int SPADES = 4;
public Card(int v, int s)
value = v;
suit = s;
public int getValue() { return value; }
public int getSuit() { return suit; }
public int rank()
if (value == 1)
return 4 * 13 + suit;
else
return 4 * (value - 1) + suit;
/**This works, but I'm confused. How is this method called? Does it call itself?**/
public String toString()
String v;
String s;
if (value == ACE)
v = "Ace";
else if (value == JACK)
v = "Jack";
else if (value == QUEEN)
v = "Queen";
else if (value == KING)
v = "King";
else
v = String.valueOf(value);
if (suit == DIAMONDS)
s = "Diamonds";
else if (suit == HEARTS)
s = "Hearts";
else if (suit == SPADES)
s = "Spades";
else
s = "Clubs";
return v + " of " + s;
private int value; //Value is an integer, so how can a
private int suit; //string be assigned to an integer?
}

Thank you so much for offering to help me with this Jamie! When I tried to call change value using:
Card dealer = (d.changeValue());
I get an error message saying:
Incompatible types found: int
required: Card
I had my weekly class last night and the professor cleared up a few things for me, but I've not had time to make all of the necessary changes. I did find out how toString worked, so that's one question out of the way, and he gave us a lot of information for adding another class to generate random numbers.
Again, thank you so much. I really want to learn this but I'm feeling so stupid right now. Any help you can give me about the above error message would be appreciated.

I am new to Java, can any one pls tell me what exactly is "Build Path".

Hi Techies...
i am new to Java, can any one pls tell me what exactly is "Build Path".
thanx in adv.
Regards
Nitin.V
Edited by: Nitin.V on Feb 12, 2008 11:08 PM
Edited by: Nitin.V on Feb 12, 2008 11:09 PM

The "BuildPath" is a place where all the "resources" referenced by your java program exists.
please visit http://www.u.arizona.edu/~jtmurphy/H2R/java.htm for more info

I'm new to Java, what do i need?

Hi,
I've been programming C++ for a while, and now I have decided to start programming in Java too.
So, what do i need to program in Java?
Got any Java compiler to recommend?

Installation Notes - JDK 5.0 Microsoft Windows (32-bit)
Your First Cup of Java
The Java� Tutorial - A practical guide for programmers
The Java� Tutorial - Trail: Learning the Java Language
New to Java Center
Java Programming Notes - Fred Swartz
How To Think Like A Computer Scientist
Introduction to Computer Science using Java
The Java Developers Almanac 1.4
Object-Oriented Programming Concepts
Object-oriented language basics
Don't Fear the OOP
Books:
The Java Programming Language - 4th Edition
Head First Java, by Bert Bates and Kathy Sierra
Thinking in Java (Free online), by Bruce Eckel
Core Java, by Cay Horstmann and Gary Cornell
Effective Java, by Joshua Bloch
http://java.sun.com/developer/Books/javaprogramming/

New to java - glitch in my program/game? should be a simple fix :)

hey everyone, I'm a student who's new to java programming :) It's is also the first programming language that I'm learning. I know the basics, but nothing very complicated.
I'm making a pong-like game, in an applet.
As I was making the paddle and using a mouselistener to make it move vertically, I came across this problem, the paddle will move vertically with the mouse's position, but one end of my paddle will grow abnormally (I want it to stay the same size as it moves up and down)
Here's my code: (I'm not using most of the mouselistener and keylistener classes yet, so you can ignore them. I'm guessing the problem is probably in one of the last classes, at the bottom)
ypaddle is the variable used for getting the co-ordinates of the mouse and transferring them to the paddle itself
// The "Ping" class.
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
*Ping
public class Ping extends Applet
    implements KeyListener, MouseListener, MouseMotionListener
    int width, height, x, ypaddle;
    Graphics g;
    char move;
     *Initializes variables
    public void init ()
        resize (700, 500);
        setBackground (Color.white);
        addKeyListener (this);
        addMouseListener (this);
        addMouseMotionListener(this);
    public void keyPressed (KeyEvent e)
    public void keyReleased (KeyEvent e)
    public void keyTyped (KeyEvent e)
    public void mouseEntered (MouseEvent e)
    public void mouseExited (MouseEvent e)
    public void mousePressed (MouseEvent e)
    public void mouseReleased (MouseEvent e)
    public void mouseClicked (MouseEvent e)
    public void mouseMoved (MouseEvent e)
        ypaddle = e.getY ();
        repaint();
    public void mouseDragged (MouseEvent e)
    public void paint (Graphics g)
        paddle (g, ypaddle);
     * Creates the paddle for hitting the ball
     *@param    y   value used to move the paddle vertically
    public void paddle (Graphics g, int y)
        g.fillRect (10, 10+y, 15, 60+y);
} // Ping classI'm totally stumped, I've tried for 2 hours to find the problem, and I have a feeling it's something very simple that I'm passing over...
If you have any questions about the variables or other things, please ask!
And one last little quick question, is there a way I can restrict the movement of the paddle between two Y values? (i.e not higher than y=10 or lower than y=100)
Thanks in advance :)

soundweave wrote:
I'm not exactly sure how to find out, Eh?
You wrote this code:
g.fillRect (10, 10+y, 15, 60+y);Do you understand what fillRect does? If I call fillRect(10, 20, 30, 40) where will that rectangle be drawn? If you don't know how to answer that, I don't see how you could have written that line of code.
but here's some pictures of what happens ( I put in 0 and 80 as the y values in each picture, and left the code window open so you can see )I don't need to see them.
Y at 0: [http://i731.photobucket.com/albums/ww314/len56/Untitled.jpg?t=1263077701|http://i731.photobucket.com/albums/ww314/len56/Untitled.jpg?t=1263077701]
Y at 80: [http://i731.photobucket.com/albums/ww314/len56/Untitled2.jpg?t=1263077625|http://i731.photobucket.com/albums/ww314/len56/Untitled2.jpg?t=1263077625]
So, given that the first one comes from fillRect(10, 10, 15, 60), (you get where that comes from I hope) and the second comes from fillRect(10, 90, 15, 150) (that too), does that not suggest that something is wrong with the numbers you're passing to fillRect? And since you have read the docs for fillRect and know what it does and what each of its parameters represents (right?), does it not suggest exactly what is wrong with those numbers?

Why is New to Java so much faster than Java Programming?

It feels like the New to Java server is at my neighbor's house, and Java Programming is on Neptune. What gives? It always takes like 10 seconds to load the Java Programming board.

I've noticed that, too. I've attributed it to message volume, since there are so many more messages under that category.
Maybe the database doesn't have an index, or perhaps they bring back LOTS of entries and cache them. Who knows?
%

Brand New to Java and Programming

I'm brand new, ( RAW ) to software programming at this time. I'm starting from scratch, I work on a Help Desk for the government so I can perform some software functionality but nothing as far as programming.. I would like recommendations for someone starting out brand new.. Books to read (JAVA for Dummies?) any beginner courses? What steps would you take if you were starting out brand new as I am myself.. Thanks..
PS, I plan on taking courses after I get the beginning stuff out of the way, just don't want to go in with no knowledge base..

For a nice list of stock answers: The One to Torment Newbies with
Sun's basic Java tutorial
Sun's New To Java Center. Includes an overview of what Java is, instructions for setting up Java, an intro to programming (that includes links to the above tutorial or to parts of it), quizzes, a list of resources, and info on certification and courses.
http://javaalmanac.com . A couple dozen code examples that supplement The Java Developers Almanac.
jGuru. A general Java resource site. Includes FAQs, forums, courses, more.
JavaRanch. To quote the tagline on their homepage: "a friendly place for Java greenhorns." FAQs, forums (moderated, I believe), sample code, all kinds of goodies for newbies. From what I've heard, they live up to the "friendly" claim.
Bruce Eckel's Thinking in Java (Available online.)
Joshua Bloch's Effective Java
Bert Bates and Kathy Sierra's Head First Java.
James Gosling's The Java Programming Language. Gosling is
the creator of Java. It doesn't get much more authoritative than this.

New to Java...Tough program to write I think...

Alright, I have a problem. I have never coded in java before, but a teacher wants a program written that is too much for html/php/VB to handel, and a friend suggestion I use java.
my problem is that I have never coded in Java before, but supposidly because its object oriented, the language should make the program easier to write.
The program is a "Group Generator"
Anyway, here is what the teacher wants:
Step 1) Program Asks user how many students are in his class, and how many students he wants in each group
Step 2) Program Asks user the names of all X students
Step 3) Program makes a list of every combination of groups that can be made out of these X people (never repeating 2 people in a group)
Step 4) Program outputs results
Here is a quick example because I know its confusing
10 kids in my class, groups of 2
Group Set 1:
1: AB
2: CD
3: EF
4: GH
5: IJ
Group Set 2:
1: AC
2: BD
3: GF
4: IH
5: EJ
and the program would keep finding sets of unique grounds...but A will never be grouped with B again, or C again...so the ammount of group sets is actually quite low.
Anway, this isnt for a grade or anything, its just something some teacher wants and I think would help teachers a bit in forming unique grounds of kids....
Any input or ideas would be GREATLY appriciated :-)

Alright, I have a problem. I have never coded in java
before, but a teacher wants a program written that is
too much for html/php/VB to handel, and a friend
suggestion I use java.HTML is markup, so it won't be of much use. However, PHP, VB, and a host of other languages can handle this easily. Write it using the language with which you are comfortable.
If you want to learn Java, however, here are some good resources...
Your First Cup of Java - http://java.sun.com/docs/books/tutorial/getStarted/cupojava/index.html
Essentials, Part 1, Lesson 1: Compiling & Running a Simple Program - http://java.sun.com/developer/onlineTraining/Programming/BasicJava1/compile.html
The Java Tutorial - A practical guide for programmers - http://java.sun.com/docs/books/tutorial/
New to Java Center - http://java.sun.com/learning/new2java/index.html
How To Think Like A Computer Scientist - http://www.ibiblio.org/obp/thinkCSjav/
Introduction to Computer Science using Java - http://chortle.ccsu.ctstateu.edu/CS151/cs151java.html
The Java Developers Almanac 1.4 - http://javaalmanac.com/
JavaRanch: a friendly place for Java greenhorns - http://www.javaranch.com/
jGuru - http://www.jguru.com
Object-Oriented Programming Concepts - http://java.sun.com/docs/books/tutorial/java/concepts/
Object-oriented language basics - http://www.javaworld.com/javaworld/jw-04-2001/jw-0406-java101.html
Don't Fear the OOP - http://sepwww.stanford.edu/sep/josman/oop/oop1.htm
Books:
Bert Bates and Kathy Sierra's Head First Java - http://www.amazon.com/exec/obidos/tg/detail/-/0596004656?v=glance
Bruce Eckel's Thinking in Java (Free online) - http://mindview.net/Books/DownloadSites
Joshua Bloch's Effective Java - http://www.amazon.co.uk/exec/obidos/Author=Bloch,%20Josh
Java Design: Building Better Apps and Applets (2nd Edition) - http://www.amazon.com/exec/obidos/tg/detail/-/0139111816/qid=1101309882/sr=8-7/ref=sr_8_xs_ap_i7_xgl14/104-6417153-1511164?v=glance&s=books&n=507846

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