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Why does this Java code compile?

...+ 1 is illegal because b is an illegal forward reference to b. You can actually fix this by writing int b = this.b + 1, which compiles without complaints. For local variables, int d = d + 1 is illegal because d is not initialized before use. This is not the case for fields, which are always default...
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How to access SOAP services from iPhone

...OK obviously that isn't a real answer. But still SOAP should be avoided at all costs. ;-) Is it possible to add a proxy server between the iPhone and the web service? Perhaps something that converts REST into SOAP for you? You could try CSOAP, a SOAP library that depends on libxml2 (which is includ...
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Openssl is not recognized as an internal or external command

... Well at the place of openssl ... you have to put actually the path to your openssl folder that you have downloaded. Your actual command should look like: keytool -exportcert -alias androiddebugkey -keystore ~/.android/debug.keystore | "C:\Users\abc\openssl\bin\openssl.exe" sha1...
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python generator “send” function purpose?

...t's useful, one of the best use cases I've seen is Twisted's @defer.inlineCallbacks. Essentially it allows you to write a function like this: @defer.inlineCallbacks def doStuff(): result = yield takesTwoSeconds() nextResult = yield takesTenSeconds(result * 10) defer.returnValue(nextResu...
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General suggestions for debugging in R

...orite debugging routine: When an error occurs, the first thing that I usually do is look at the stack trace by calling traceback(): that shows you where the error occurred, which is especially useful if you have several nested functions. Next I will set options(error=recover); this immediately sw...
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Is there any async equivalent of Process.Start?

Like the title suggests, is there an equivalent to Process.Start (allows you run another application or batch file) that I can await? ...
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Android Bitmap to Base64 String

... The problem with jeet's answer is that you load all bytes of the image into a byte array, which will likely crash the app in low-end devices. Instead, I would first write the image to a file and read it using Apache's Base64InputStream class. Then you can create the Base64...
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php $_POST array empty upon form submission

... "WWW." The $_POST array was getting emptied in the process. So to fix it all I had to do was submit to www.domain.com share | improve this answer | follow | ...
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What's the best way of structuring data on firebase?

... opposed to RDBMS, is that it's tempting to nest data because we can. Generally, you want to normalize data to some extent (just as you would do with SQL) despite the lack of join statements and queries. You also want to denormalize in places where read efficiency is a concern. This is a technique...
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How do I convert datetime to ISO 8601 in PHP

... than ISO8601 (the colon is missing in the TZ, ISO8601 expects times to be all with OR all without the colon, not a mixture) - date('c') does produces a strict ISO 8601 valid date - This could cause hard to trace bugs if code expects a strict ISO 8601 datetime format. Ref: en.wikipedia.org/wiki/ISO_...