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What is a bus error?
What does the "bus error" message mean, and how does it differ from a segfault?
15 Answers
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What does java.lang.Thread.interrupt() do?
.... Then code running in that target thread MAY poll the interrupted status and handle it appropriately. Some methods that block such as Object.wait() may consume the interrupted status immediately and throw an appropriate exception (usually InterruptedException)
Interruption in Java is not pre-emp...
Utility classes are evil? [closed]
...is exposed through web services in json format.
In theory you can manually convert objects to strings which will be in json, but that would reinvent the wheel. Correct solution would be to include in both modules external library used to convert java objects to desired format. (in example image I ha...
How can a Java program get its own process ID?
...ctory.getRuntimeMXBean().getName() looks like the best (closest) solution, and typically includes the PID. It's short, and probably works in every implementation in wide use.
On linux+windows it returns a value like 12345@hostname (12345 being the process id). Beware though that according to the doc...
How do I find the caller of a method using stacktrace or reflection?
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A StackTraceElement has getClassName(), getFileName(), getLineNumber() and getMethodName().
You will have to experiment to determine which index you want
(probably stackTraceElements[1] or [2]).
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DateTime.ToString(“MM/dd/yyyy HH:mm:ss.fff”) resulted in something like “09/14/2013 07.20.31.371”
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Convert Date To String
Use name Space
using System.Globalization;
Code
string date = DateTime.ParseExact(datetext.Text, "dd-MM-yyyy", CultureInfo.InstalledUICulture).ToString("yyyy-MM-dd");
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Is it possible to use raw SQL within a Spring Repository
...on {
int getId();
String getName();
String getRollNo();
}
And Your Data Access Object(Dao) is like bellow :
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.CrudRepository;
import java.util.ArrayList;
public interface UserInfoTestDa...
Using async/await for multiple tasks
....Select(i => DoSomething(1, i, blogClient)).ToArray());
On the other hand, the above code with WaitAll also blocks the threads and your threads won't be free to process any other work till the operation ends.
Recommended Approach
I would prefer WhenAll which will perform your operations asyn...
How to add extension methods to Enums
...xisting classes in a way other people on your team might actually discover and use. Given that enums are classes like any other it shouldn’t be too surprising that you can extend them, like:
enum Duration { Day, Week, Month };
static class DurationExtensions
{
public static DateTime From(this...
Assign null to a SqlParameter
...operator that explains the problem
Either the type of first_expression and second_expression must be the same, or an implicit conversion must exist from one type to the other.
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