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Re: drag and drop word to match image
This is post#114Do I need to delete any part of the code in post #114 or do I add to it??
What is your question about post #114?Don't be in a hurry to move the testing code into the main program. It will be easier to work out the techniques in the test program.
If you don't understand my answer, don't ignore it, ask a question.
Re: drag and drop word to match image
I mean post 144..
The question is on there
Re: drag and drop word to match image
See post#133 for an example of a constructor that takes a String as argument.
That is VERY BASIC java programming. If you can not code a constructor now after so much coding, you need to go back and study the tutorial and code some simple programs before trying to code this program.
Providing Constructors for Your Classes (The Java™ Tutorials > Learning the Java Language > Classes and Objects)
Passing Information to a Method or a Constructor (The Java™ Tutorials > Learning the Java Language > Classes and Objects)
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Re: drag and drop word to match image
are you able to tell me what i am doing wrong please
Last edited by stresstedout; March 4th, 2014 at 01:42 AM.
Re: drag and drop word to match image
What are supposed to be in the two int values passed to the constructor: testing and test?public class DropTarget(int testing, int test){
What happened to the definition for:
public static class DropTargetTextArea ...
That is the class whose constructor needs to be changed.
Undo those changes and go back to the last code that worked and start over.
If you don't understand my answer, don't ignore it, ask a question.
Re: drag and drop word to match image
Originally Posted by Norm
are you able to tell me in steps on how to do this?
Last edited by stresstedout; March 4th, 2014 at 01:43 AM.
Re: drag and drop word to match image
Those changes do not make any sense.
Go back to the last version of the code that compiled and executed and start again.
If you don't understand my answer, don't ignore it, ask a question.
Re: drag and drop word to match image
i have done that, but you said i cant have the strings in the method. i understand how constructors work but i think im just so stressted out about getting this done my head is not working atm.
Please can you help me somehow. or a step by step on how to achieve this?
Re: drag and drop word to match image
I have told you what needs to be done. Re-read the posts on the thread.
This is the problem you need to solve:
If there are 30 images as drop targets, each with a different String to be shown with them when the user correctly drops a String from a DraggableLabel, how will those 30 images know what String they should show?
The String needs to be passed into the class that holds the image via the class's constructor.
If you don't understand my answer, don't ignore it, ask a question.
Re: drag and drop word to match image
i know you have given those documents to read through, but i dont understand on how to change the current to code.
i have read the thread several times but im not getting any where. im lost
Re: drag and drop word to match image
Ok, put the current program aside and work on a new very small test program that uses the technique you need:
Write a test program that
has a constructor that takes a String as arg
the constructor saves the String in a class variable
Also the class has a method that takes a String as an arg
and compares that arg to the String that was passed to the constructor
and returns true if they match, else false
Add a main() method to the class that
creates an instance of the class passing the constructor a String
and then calls the compare method of the class several times with different Strings
and prints out the results returned by the compare method.
If you don't understand my answer, don't ignore it, ask a question.
Re: drag and drop word to match image
i seriously dont have time to be making small programs.. i need to submit this tonight.
Re: drag and drop word to match image
You said: im lost
I think you need to work on simpler projects to learn the techniques needed for this larger program.
The current program you are/were working on was a test program to get the techniques for drag and drop.
When that is working it will take several days for you to rewrite the large program that will do the final project.
If you don't understand my answer, don't ignore it, ask a question.
Re: drag and drop word to match image
please can you tell how to code this constructor to pass the string. if i dont hand this 2maro i will fail the whole module. please try to understand. once i get this working then i have a good few hours to work on the final project, i may not have it fully complete but atleast i will get marks for somthing.. please i beg ya
Re: drag and drop word to match image
See the constructor for the DraggableLabel class. It has a String as arghow to code this constructor to pass the string.
If you don't understand my answer, don't ignore it, ask a question.
Re: drag and drop word to match image
yes it does. :'(
Re: drag and drop word to match image
??? What are you waiting for? There is an example that you coded in the program. Copy the technique shown there.
If you don't understand my answer, don't ignore it, ask a question.
Re: drag and drop word to match image
like this ??
Last edited by stresstedout; March 4th, 2014 at 01:43 AM.
Re: drag and drop word to match image
Did that compile and execute and do what you wanted?
If not post the errors or explain what happened and what you want to be different.
If you don't understand my answer, don't ignore it, ask a question.
Re: drag and drop word to match image
i tried this yesterday that code but it didnt work, here is the error.
Exception in thread "main" com.mysql.jdbc.exceptions.jdbc4.CommunicationsExce ption: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
at sun.reflect.NativeConstructorAccessorImpl.newInsta nce0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInsta nce(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newI nstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Construc tor.java:525)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:41 1)
at com.mysql.jdbc.SQLError.createCommunicationsExcept ion(SQLError.java:1117)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:350)
at com.mysql.jdbc.ConnectionImpl.coreConnect(Connecti onImpl.java:2408)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(Co nnectionImpl.java:2445)
at com.mysql.jdbc.ConnectionImpl.createNewIO(Connecti onImpl.java:2230)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImp l.java:813)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connect ion.java:47)
at sun.reflect.NativeConstructorAccessorImpl.newInsta nce0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInsta nce(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newI nstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Construc tor.java:525)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:41 1)
at com.mysql.jdbc.ConnectionImpl.getInstance(Connecti onImpl.java:399)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonReg isteringDriver.java:334)
at java.sql.DriverManager.getConnection(DriverManager .java:579)
at java.sql.DriverManager.getConnection(DriverManager .java:221)
at javaapplication24.JavaApplication24.main(JavaAppli cation24.java:44)
Caused by: java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Du alStackPlainSocketImpl.java:69)
at java.net.AbstractPlainSocketImpl.doConnect(Abstrac tPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress( AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractP lainSocketImpl.java:182)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.j ava:157)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.j ava:391)
at java.net.Socket.connect(Socket.java:579)
at java.net.Socket.connect(Socket.java:528)
at java.net.Socket.<init>(Socket.java:425)
at java.net.Socket.<init>(Socket.java:241)
at com.mysql.jdbc.StandardSocketFactory.connect(Stand ardSocketFactory.java:259)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:300)
... 15 more
Java Result: 1
Re: drag and drop word to match image
Sorry, I don't know anything about databases. Forget about using databases. Use image files in a folder.
What happened to the test program that was to have two different DraggableLabel objects and two DropTargetTextArea objects with different Strings so that the DnD logic could be tested?
If you don't understand my answer, don't ignore it, ask a question.
Re: drag and drop word to match image
do you know what this means?
Exception in thread "main" java.lang.RuntimeException: Uncompilable source code - constructor DropTargetTextArea in class javaapplication24.DragAndDropExample.DropTargetTex tArea cannot be applied to given types;
required: java.lang.String
found: no arguments
reason: actual and formal argument lists differ in length
at javaapplication24.DragAndDropExample.main(DragAndD ropExample.java:66)
Java Result: 1
Re: drag and drop word to match image
The constructor takes a String but there wasn't a String provided.required: java.lang.String
found: no arguments
reason: actual and formal argument lists differ in length
If you don't understand my answer, don't ignore it, ask a question.
Re: drag and drop word to match image
here is the full code...
where am i going wrong?
Last edited by stresstedout; March 4th, 2014 at 01:44 AM.
Re: drag and drop word to match image
The DropTargetTextArea constructor takes a String but there wasn't a String provided.
Add a String as an arg in the new statement.
If you don't understand my answer, don't ignore it, ask a question.
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