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How do you prototype your software UI?

- by MemoryLeak

How do you prototype your software UI? What's your experience? Could you please share with me? Thanks in advance!

how to listen to Enter button when using JOptionPane.showOptionDialog

I use: char[] password = null; JPasswordField jpf = new JPasswordField(30); java.lang.Object [] messageInput = { prompt, jpf }; java.lang.Object [] options = { jpf , "OK", "Cancel"}; int result = JOptionPane.showOptionDialog(null, messageInput, title, JOptionPane.OK_CANCEL_OPTION, JOptionPane.QUESTION_MESSAGE, null, options, ""); JOptionPane.showMessageDialog(null, result); if (result == 1) { password = jpf.getPassword(); } else if(result == JOptionPane.CANCEL_OPTION) { } return password; to get password, but this can not listen to the Enter button. I know if I set the options parameter to null, can make the dialog listen to "enter" button, but if I do that, the dialog don't focus to the textbox when show up. Can someone help me on this ? Thanks in advance !

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How can I create a model in Powerdesigner which can generate create script for different database?

- by MemoryLeak

I just want to create the model once, and then use it in any kind of database, without the need to modify the model. What I should do with the data type ? I found there is numeric and other kind of data types. What does that correspond to in mysql or access ?

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What tools or libraries used in your company to speed up the development and ensure the quality ?

- by MemoryLeak

As far as I know some company will use Devexpress to speed up the UI design some company might use the AssistX . another question: is there any plugin which can help to keep a eye on our company 's code convention? If someone don't follow the convention, visual studio will warn him ?

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iPhone: Memory leak when using NSOperationQueue...

- by MacTouch

Hi, I'm sitting here for at least half an hour to find a memory leak in my code. I just replaced an synchronous call to a (touch) method with an asynchronous one using NSOperationQueue. The Leak Inspector reports a memory leak after I did the change to the code. What's wrong with the version using NSOperationQueue? Version without a MemoryLeak -(NSData *)dataForKey:(NSString*)ressourceId_ { NSString *path = [self cachePathForKey:ressourceId_]; // returns an autoreleased NSString* NSString *cacheKey = [self cacheKeyForRessource:ressourceId_]; // returns an autoreleased NSString* NSData *data = [[self memoryCache] valueForKey:cacheKey]; if (!data) { data = [self loadData:path]; // returns an autoreleased NSData* if (data) { [[self memoryCache] setObject:data forKey:cacheKey]; } } [[self touch:path]; return data; } Version with a MemoryLeak (I do not see any) -(NSData *)dataForKey:(NSString*)ressourceId_ { NSString *path = [self cachePathForKey:ressourceId_]; // returns an autoreleased NSString* NSString *cacheKey = [self cacheKeyForRessource:ressourceId_]; // returns an autoreleased NSString* NSData *data = [[self memoryCache] valueForKey:cacheKey]; if (!data) { data = [self loadData:path]; // returns an autoreleased NSData* if (data) { [[self memoryCache] setObject:data forKey:cacheKey]; } } NSInvocationOperation *touchOp = [[NSInvocationOperation alloc] initWithTarget:self selector:@selector(touch:) object:path]; [[self operationQueue] addOperation:touchOp]; [touchOp release]; return data; } And of course, the touch method does nothing special too. Just change the date of the file. -(void)touch:(id)path_ { NSString *path = (NSString *)path_ NSFileManager *fm = [NSFileManager defaultManager]; if ([fm fileExistsAtPath:path]) { NSDictionary *attributes = [NSDictionary dictionaryWithObjectsAndKeys:[NSDate date], NSFileModificationDate, nil]; [fm setAttributes: attributes ofItemAtPath:path error:nil]; } }

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