Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
Closed 4 years ago.
This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers.
Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question.
Improve this question
Ok this is really frustrating. I'm using my API key perfectly fine. Authentication does just fine, token is generated fine, session key is also OK.
But when I run the playlist.create, the playlist is not created.
Addendum (6 April 2013): It turned out I had to generate a new md5 hash for my sig, but even after doing so, the method does not work.
Addendum 2 (9 April 2013): I started from almost scratch today, and redid most of my code. I created 16 playlists successfully, no errors. But today, the same code's not working. I didn't touch it at all and yet the error.
nvm
For security purposes, I cannot show you my security keys. However, I did write a quick program to find the last.fm session key: http://github.com/thekarangoel/LastFMSessionKeyFinder Simply register at last.fm/api, enter your API key and secret in the program and you'll have everything you need to test the API call.
My gazillionth answer
You did not include the description in your hashed signature.
My second answer
As mentioned before in one of my comments, you're code is causing a MalformedURLException. You don't see this because you're doing no exception handling within your SwingWorker subclass. If you add exception handling as suggested here, you'll see that.
My first answer
You're missing an & in your parameter list:
String params = "method=playlist.create&title=" + title+ "api_key=" + ...
Should be
String params = "method=playlist.create&title=" + title+ "&api_key=" + ...
It's probably a good idea to read the answer of the request (connection.getInputStream() etc.) and check what the issue is.
Related
Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 2 years ago.
Improve this question
it's the error I'm not good at programming but I try to learn. I am learning how to use javaFx. In this case I want to implement 4 operations: add, subtract, multiply and divide. When I was using only one it worked for me I am new to the Starck overflow community. I always check when I have doubts. But I did not find a solution to my problem. It would be very helpful if you support me.
If you like me to share the folder. They explain to me how it would be very helpful.
Also my english's not good but i'm learning to
See this post on InvocationTargetException
See the Oracle Documentation on RuntimeException
See this post on javafx.fxml.LoadException
**As noted in the comments, the stack trace, in your case the red error text, tells you one of the problems: ** "Error resolving onAction = '$handleResta', either the event handler is not in the Namespace or there is an error in the script".
The comments are also asking for the file which contains the error, in order to help you more fully; We've identified that onAction = '#handleResta' is a problem problem, but we can't tell what about #handleResta is creating the error until you post this file:
/C:Users/Usuario/Downloads/Proy/build/classes/mvvm/FXMLVista.fxml:14
Closed. This question needs debugging details. It is not currently accepting answers.
Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question.
Closed 2 years ago.
Improve this question
Can someone answer my question: Why i can't create child in root like this:
mDatabase.child("teams").child(uniqueIDstr).child("members").child(currentUser.getEmail()).setValue("XD");
because something like this is working properly:
mDatabase.child("users").child(currentUser.getUid()).child("groups").child(uniqueIDstr).setValue("group");
The problem is in this call child(currentUser.getEmail()). An email address always contains at least one . and that character is not allowed in keys in the Firebase Realtime Database. You should actually be getting an error message when you run that code that pretty explicitly tells you this.
The common solution is to "encode" the email address, for example by remove the .s from it or by changing each . to a ,. The latter is a neat trick, since , is not allowed in email addresses while it is allowed in Realtime Database keys.
Closed. This question needs debugging details. It is not currently accepting answers.
Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question.
Closed 5 years ago.
Improve this question
I'm writing a java program in Eclipse, and when I try to use recursion it gives this error:
Exception in thread "main" java.lang.StackOverflowError
I know that people have probably already asked this question, but every response I've found has been to remove recursion. For what I'm trying to do, recursion is a necessity. There's no other option. I know that the recursive limit can be modified in Enthought Canopy (for python) like this:
import sys
sys.setrecursionlimit(10000)
Is there a way to do this for java in Eclipse? Again, removing recursion is not an option.
UPDATE: I figured out the problem (which was an infinite loop), and the code works now.
Take a look at this: What is the maximum depth of the java call stack?
While it is not exactly a duplicate, it also answers your question by explaining how the limit can be changed.
Note that Eclipse itself has nothing to do with the limit, it is a Java restriction and can be increased by allocating more space to it.
As always with such questions one should note that your code is likely to be inefficient, wrong or maybe has a non-recursive alternative. However you said that you are not interested in such solutions, so I just leave it here as a side note.
Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 7 years ago.
Improve this question
I cannot seem to get this and yet i know it's something simple. getIntHeader doesn't work right, as it only returns -1. It's driving me mad, so i know fresh eyes will help my over the mental block.
Here is the line:
this.price = request.getIntHeader("price");
all suggestions are welcome
thanks in advance
Well per Java EE documentation -1 means that the header with the name you specified does not exist in the request.
So...
Check the name.
Look at the request in debugger or from browser or wireshark and see what headers it has.
Decide what to do with missing header, or whether you are just looking for the wrong one.
The name "price" doesn't look very conventional as the name of an http header.
And so you may be looking for something in a header that is actually delivered in another way, e.g. query parameter, form field, etc.
If your client is not sending a header, you can't receive and process it.
Java EE Doc I read was silent about what happens when the header exists but the value is not an integer, as a price often would not be. I would expect it might throw NumberFormatException in that case. But didn't try it, and it's conceivable it might eat the exception and return -1. I would bet it throws NumberFormatException, in that case.
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
Closed 8 years ago.
This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers.
This question appears to be off-topic because it lacks sufficient information to diagnose the problem. Describe your problem in more detail or include a minimal example in the question itself.
Improve this question
I am trying to develop a small pizza ordering app. I have 3 classes so far and the purpose of them right now is to display 3 menus with the menu items accessible.
Previously I had only one class and that worked just fine however issues started occurring when I split the program to use several classes.
Main.java:
http://pastebin.com/bZJ7Pgdt
MakeFileMenu.java:
http://pastebin.com/wv2Smm6E
MakeFrame.java:
http://pastebin.com/J7DV294P
The errors I am getting are:
Exception in thread "main" java.lang.NullPointerException
at main.MakeFileMenu.MakeMenu(MakeFileMenu.java:24)
at main.Main.start(Main.java:26)
at main.Main.main(Main.java:16)
Furthermore in the Makeframe.java file lines 37, 42, 49 and 57 should be uncommented. I commented them out as they were giving me errors so I thought I will at least try to get the menus to appear.
Anything you guys see out of the ordinary? I double checked the code I can't seem to figure out what could be wrong with it.
Thanks for your help!
The problem is in line:
frame.frame.setJMenuBar(menuBar);
this is because variable frame in frame (frame.frame) is not initialized. You have to initialize it before using.
You either forgot to call makeFrame on frame in MakeFileMenu or you should rename makeFrame to MakeFrame to make it a constructor.