create a class toy collection that stores information about different toys in a toy shop. - Java Discussion Boards

Re: Java GUI help

toxcct28-Jul-08 0:30

toxcct

28-Jul-08 0:30

how to make it touch the window ?
easy Smile | :)

draw it of the size of the component, and be sure the component is of the size of the window (in your window, add a panel, on which you can draw directly)...

if you place the drawing code in the correct event handler, (overload paintComponent(Graphics)).

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Re: Java GUI help

BlackWolvix28-Jul-08 4:07

BlackWolvix

28-Jul-08 4:07

thanx but i figured it out alrdy Smile | :)

... i really apprecite ur help Wink | ;)

but here what i got recently ... i extracted it from netbeans XD

this is an example using button instead of ellipse Wink | ;)

jButton1 = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jButton1.setText("jButton1");
        jButton1.setMaximumSize(new java.awt.Dimension(73, 23));
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jButton1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 400, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jButton1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 300, Short.MAX_VALUE)
        );

there u go i hope u also benefited Wink | ;)

BlaCk WolViX

Please guide me about remote server code...

ED STEVENS21-Jul-08 19:28

ED STEVENS

21-Jul-08 19:28

Do i need an Apache/Tomcat server for a code program that needs the client to establish connection with the server & depending on what user does thereafter ,it updates the desktop of the client periodically i.e sends new desktop images to the client...now am i in need of an Apache/Tomcat server installation, if i want to run this code from the same system .... Roll eyes | :rolleyes:

I somehow can't test it on a n/w.....

How to implement ECDH in Java?

Nayeem_Ctg16-Jul-08 0:20

Nayeem_Ctg

16-Jul-08 0:20

Hello Everybody,
Can anyone help me to implement ECDh in Java? I need it so much.

Thanks

Nayeem

Re: How to implement ECDH in Java?

toxcct28-Jul-08 0:28

toxcct

28-Jul-08 0:28

what about this[^] ?

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replace()

thachil9-Jul-08 5:37

thachil

9-Jul-08 5:37

I have a string strValue = " 'one',two "
I want to change the the value strValue to " 'one'+'two' "

Can anybody help me?

Re: replace()

CPallini24-Jul-08 2:05

CPallini

24-Jul-08 2:05

according to documentation [^]

strValue = strValue.replace(',','+');

should do the trick.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

create a class toy collection that stores information about different toys in a toy shop.

thewarrior_20063-Jul-08 21:36

thewarrior_2006

3-Jul-08 21:36

create a class toy collection that stores information about different toys in a toy shop. The information to be stored about a single toy is,

- toy identification as string
- name of the toy as string
- Short discription about the toy as string
- Price of the toy as float
- Quantity of the toy in hand as short integer

This class contains following methods,
- Constructor method that assigns user input values to above mantioned variables.
- main() method that creates array of 4 objects of toycollection class and that takes input for all about details from the user end
class method to check validity of Quantity and Price values. If all values are valid then create the object and display the details for all 4 toys.
- Method that checks validity of quentity and price. If the quentity is 0 or negitive then method should through a user defined exception with approriate message and come out of program. Similiry if the prize is 0 or negivity then it should through user defined exception with appropriate message and come out of the program.

- Method that displays all detail about a single toy in the following format, e.g. Here Total price should be calculated

Toy Identification : S-1
Toy Name : Small Scooter
Toy description : Ordenery 3 wheeler Scooter
Toy Price : 650.50
Quantity in hand : 3
Total price of Toys : 1951.50

Re: create a class toy collection that stores information about different toys in a toy shop.

toxcct7-Jul-08 8:25

toxcct

7-Jul-08 8:25

So you want us to do your homework, right ?

and what if you were listening at the teacher when he was talking to you guyz at the rear of the classroom ?

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java run time-error

annie_144330-Jun-08 10:40

annie_1443

30-Jun-08 10:40

i m having problrm in running java program.My program is getting compiled but when i try to run it it give me the following eror
Exception in thread "main" java.lang.NoClassDefFoundError: Example
The name of class in my prog.is Example
i m compiling it using javac Example.java command and running it by using java Example bt it is generating error.plz help to fix my problem.

annie

Re: java run time-error

toxcct30-Jun-08 20:52

toxcct

30-Jun-08 20:52

such an exception typically occurs when a user-defined class you're using (a class of yours then) cannot be found by the JVM.

To solve that, check your classpath.

Just a guess : why don't you use an IDE (Eclipse is pretty cool for java !! you should have a look at it) ?
BTW, Do you Example class references any other class defined in another file which the compiler wouldn't know about ?

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Re: java run time-error

baalaajee28-Jul-08 4:33

baalaajee

28-Jul-08 4:33

My guess is '.' would be missing in the classpath.

As in aforesaid reply, its good to use IDE like Eclipse. Smile | :)

Encryption between Java and ASP.Net

doWhileSomething30-Jun-08 7:23

doWhileSomething

30-Jun-08 7:23

Hello,

I've only dabled a bit in Java, I work almost exclusively with .Net. That being said, I am looking to do encrypt a string from a java application (this will be done by another developer), decrypt it in .Net and send an XML response to the the java app.

Is there a universal method for encryption in Java that would allow us to use the same encryption key/method?

I know how to encrypt/decrypt in .Net, I just need to know if there is a standard that is used by both frameworks?

My Personal Site

Re: Encryption between Java and ASP.Net

doWhileSomething5-Jul-08 6:26

doWhileSomething

5-Jul-08 6:26

FYI - (in case anyone is interested)

I just used standard DES encryption which worked out great for my situation. As long as the same rgb/rgbIV keys are used on both ends, the entire process was very painless.

My Personal Site

Finding the largest subtree in tree

paulosuckow23-Jun-08 8:38

paulosuckow

23-Jun-08 8:38

if we have a tree that contains int.
I want to find the largest subtree, in a sense that it (subtree)has largest sum of the values of the nodes

Any idea, codes??

Thanks
P.S.

Re: Finding the largest subtree in tree

jan larsen26-Jun-08 3:41

jan larsen

26-Jun-08 3:41

I think you need to clarify your question. E.g:
1. Are you talking binary trees here?
2. Do you mean you want a method to test which childnode of a given node that together with its childnodes has the largest sum of values?

"God doesn't play dice" - Albert Einstein

"God not only plays dice, He sometimes throws the dices where they cannot be seen" - Niels Bohr

Problem with reading large file in java

buntyrolln15-Jun-08 20:04

buntyrolln

15-Jun-08 20:04

Please help me in reading large files in java.i encountered OutofMemoryError.

buntyrolln

Re: Problem with reading large file in java

toxcct15-Jun-08 22:30

toxcct

15-Jun-08 22:30

how do you read your file ?
please post a relevant piece of code.

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Re: Problem with reading large file in java

shashidhar323025-Jun-08 19:52

shashidhar3230

25-Jun-08 19:52

hey why dont you increase java heapsize, using -Xms512x -Xmx1024x parameters, just go through jdk150_11 documentation and do the work around it will read. Smile | :)

I have problem in parsing state machine diagram

Member 42397379-Jun-08 17:31

Member 4239737

9-Jun-08 17:31

I am using eclipse modelling framework. i am unable to connect transitions to their source states and destination states. Please somebody help me

Re: I have problem in parsing state machine diagram

toxcct9-Jun-08 21:10

toxcct

9-Jun-08 21:10

you already asked that yesterday.
it's a forum, not a chat.
so please read the forum guidelines, and be patient.

also, know that if you don't be efficient answers, maybe it's because nobody knows, or because you asked the wrong way with too few infos, etc...

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I have problem in parsing state machine diagram

Member 42397379-Jun-08 1:30

Member 4239737

9-Jun-08 1:30

I am using eclipse modelling framework. i am unable to connect transitions to their source states and destination states. Please somebody help me Frown | :(

java - applet, after a command connecting to another html page

simon alec smith8-Jun-08 1:12

simon alec smith

8-Jun-08 1:12

I use to have the code but I am unable to trace it.
can anybody help?

Re: java - applet, after a command connecting to another html page

toxcct8-Jun-08 21:55

toxcct

8-Jun-08 21:55

please ask a specific a clear question (because I can't even understand what you're asking for...!

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Re: java - applet, after a command connecting to another html page

simon alec smith8-Jun-08 23:31

simon alec smith

8-Jun-08 23:31

I want to connect to another web page, like in html "href......."
via an applet

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.