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how to get the one entry from hashmap without iterating
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Get values, convert it to an array, get array's first element:
map.values().toArray()[0]
W.
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Binding a Button's visibility to a bool value in ViewModel
...AdvancedFormat is a bool, you need to declare and use a BooleanToVisibilityConverter:
<!-- In your resources section of the XAML -->
<BooleanToVisibilityConverter x:Key="BoolToVis" />
<!-- In your Button declaration -->
<Button
Height="50" Width="50"
Style="{StaticResource M...
How do you convert an entire directory with ffmpeg?
How do you convert an entire directory/folder with ffmpeg via command line or with a batch script?
24 Answers
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Load RSA public key from file
...-bit RSA private key
$ openssl genrsa -out private_key.pem 2048
Convert private Key to PKCS#8 format (so Java can read it)
$ openssl pkcs8 -topk8 -inform PEM -outform DER -in private_key.pem -out private_key.der -nocrypt
Output public key portion in DER format (so Java can read...
Is there a tool to convert JavaScript files to TypeScript [closed]
Now TypeScript came out, it is an exciting news for me, but how can I convert all the existing JavaScript files to TypeScript.
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How Do I Convert an Integer to a String in Excel VBA?
How do I convert the integer value "45" into the string value "45" in Excel VBA?
10 Answers
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Converting a Java collection into a Scala collection
...Overflow question Scala equivalent of new HashSet(Collection) , how do I convert a Java collection ( java.util.List say) into a Scala collection List ?
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How to save MailMessage object to disk as *.eml or *.msg file
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Here's an extension method to convert a MailMessage to a stream containing the EML data.
Its obviously a bit of a hack as it uses the file system, but it works.
public static void SaveMailMessage(this MailMessage msg, string filePath)
{
using (var fs...
how to convert java string to Date object [duplicate]
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You basically effectively converted your date in a string format to a date object. If you print it out at that point, you will get the standard date formatting output. In order to format it after that, you then need to convert it back to a date object...
Make a float only show two decimal places
...ow the number is stored, it is a matter of how you are displaying it. When converting it to a string you must round to the desired precision, which in your case is two decimal places.
E.g.:
NSString* formattedNumber = [NSString stringWithFormat:@"%.02f", myFloat];
%.02f tells the formatter that ...