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Find where java class is loaded from
...an example:
package foo;
public class Test
{
public static void main(String[] args)
{
ClassLoader loader = Test.class.getClassLoader();
System.out.println(loader.getResource("foo/Test.class"));
}
}
This printed out:
file:/C:/Users/Jon/Test/foo/Test.class
...
JPQL IN clause: Java-Arrays (or Lists, Sets…)?
...
I'm not sure for JPA 1.0 but you can pass a Collection in JPA 2.0:
String qlString = "select item from Item item where item.name IN :names";
Query q = em.createQuery(qlString, Item.class);
List<String> names = Arrays.asList("foo", "bar");
q.setParameter("names", names);
List<Item...
c# open file with default application and parameters
...
this should be close!
public static void OpenWithDefaultProgram(string path)
{
Process fileopener = new Process();
fileopener.StartInfo.FileName = "explorer";
fileopener.StartInfo.Arguments = "\"" + path + "\"";
fileopener.Start();
}
...
AttributeError(“'str' object has no attribute 'read'”)
...he response still doesn't have a read function. Are we supposed to put the string in some object with a read function?
– zakdances
Aug 11 '12 at 9:37
90
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How can a time function exist in functional programming?
... the new action. For instance, let's pretend there is a function now :: IO String, which returns a String representing the current time. We can chain it with the function putStrLn to print it out:
now >>= putStrLn
Or written in do-Notation, which is more familiar to an imperative programmer...
Android: how to make an activity return results to the activity which calls it?
...u can make use of setData() to return result.
Intent data = new Intent();
String text = "Result to be returned...."
//---set the data to pass back---
data.setData(Uri.parse(text));
setResult(RESULT_OK, data);
//---close the activity---
finish();
So then again in the first activity you write the b...
Dependency Inject (DI) “friendly” library
... {
SqlConnection connection = new SqlConnection("some connection string");
WindowsIdentity identity = WindowsIdentity.GetCurrent();
// Do something with connection and identity variables
}
}
You write it like this:
public class Service
{
public Service(IDbConnect...
When should we use mutex and when should we use semaphore
... to sleep till you release the mutex.
Spinlock:
Use a spinlock when you really want to use a mutex but your thread is not allowed to sleep.
e.g.: An interrupt handler within OS kernel must never sleep. If it does the system will freeze / crash. If you need to insert a node to globally shared linke...
How to check if a URL is valid
How can I check if a string is a valid URL?
9 Answers
9
...
Getting a timestamp for today at midnight?
... get today's date without any references to time, and then pass it to the 'string to time' function which converts a date and time to a epoch timestamp. If it doesn't get a time, it assumes the first second of that day.
References:
Date Function: http://php.net/manual/en/function.date.php
String T...