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How do I call Objective-C code from Swift?

...t If you have an existing class that you'd like to use, perform Step 2 and then skip to Step 5. (For some cases, I had to add an explicit #import <Foundation/Foundation.h to an older Objective-C File.) Step 1: Add Objective-C Implementation -- .m Add a .m file to your class, and name it Cu...
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How can I restart a Java application?

...a Java AWT application? I have a button to which I have attached an event handler. What code should I use to restart the application? ...
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One Activity and all other Fragments [closed]

I am thinking of implementing one screen with Activity and all other sreens with Fragments and managing all the fragments thru the activity . ...
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'Missing recommended icon file - The bundle does not contain an app icon for iPhone / iPod Touch of

...en here. Here's a helpful website that creates an icon for iOS, Mac App and Android app. You just need to drag and drop your 1024 x 1024 icon and the site will create all the icon sizes and send it to your email. Then follow the following method to set icons for iOS app. After Apple launched iO...
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How to shrink/purge ibdata1 file in MySQL

... new table (B), import the data into B, submit a query to get what I need, and then I drop B and drop A. 8 Answers ...
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How can I recover the return value of a function passed to multiprocessing.Process?

...m each process, where one value is the actual return value you care about, and the other is a unique identifier from the process. But I also wonder why you need to know which process is returning which value. If that what you actually need to know about the process, or do you need to correlate betwe...
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WatiN or Selenium? [closed]

... tests of our presentation soon. It seems that everyone recommends WatiN and Selenium . Which do you prefer for automated testing of ASP.NET web forms? Which of these products work better for you? ...
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Associative arrays in Shell scripts

... To add to Irfan's answer, here is a shorter and faster version of get() since it requires no iteration over the map contents: get() { mapName=$1; key=$2 map=${!mapName} value="$(echo $map |sed -e "s/.*--${key}=\([^ ]*\).*/\1/" -e 's/:SP:/ /g' )" } ...
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Difference between string and char[] types in C++

I know a little C and now I'm taking a look at C++. I'm used to char arrays for dealing with C strings, but while I look at C++ code I see there are examples using both string type and char arrays: ...
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What is an SSTable?

In BigTable/GFS and Cassandra terminology, what is the definition of a SSTable? 4 Answers ...