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Sending files using POST with HttpURLConnection

Since the Android developers recommend to use the HttpURLConnection class, I was wondering if anyone can provide me with a good example on how to send a bitmap "file" (actually an in-memory stream) via POST to an Apache HTTP server. I'm not interested in cookies or authentication or anything com...
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Add st, nd, rd and th (ordinal) suffix to a number

I would like to dynamically generate a string of text based on a current day. So, for example, if it is day 1 then I would like my code to generate = "Its the 1* st *". ...
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How do I create and read a value from cookie?

How can I create and read a value from a cookie in JavaScript? 19 Answers 19 ...
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How can we match a^n b^n with Java regex?

One of the archetypal non- regular languages is: 3 Answers 3 ...
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Sending email with PHP from an SMTP server

I have trouble sending email in PHP. I get an error: SMTP server response: 530 SMTP authentication is required . 8 Answers...
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Detecting iOS / Android Operating system

I've done some research, and this question has come up, but not in the way I intend. I'm building a page for a client that is a QR code landing, which is a place to download an application. So he doesn't have to print out 2 QR codes on a page, I'd like to detect the current operating system (Apple...
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How to access the last value in a vector?

Suppose I have a vector that is nested in a dataframe one or two levels. Is there a quick and dirty way to access the last value, without using the length() function? Something ala PERL's $# special var? ...
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How to use a variable to specify column name in ggplot

... 6 Answers 6 Active Ol...
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How to reorder data.table columns (without copying)

I'd like to reorder columns in my data.table x , given a character vector of column names, neworder : 2 Answers ...
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Java Reflection: How to get the name of a variable?

Using Java Reflection, is it possible to get the name of a local variable? For example, if I have this: 8 Answers ...