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Implementing two interfaces in a class with same method. Which interface method is overridden?
Two interfaces with same method names and signatures. But implemented by a single class then how the compiler will identify the which method is for which interface?
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Entity Framework code first unique column
...odel will look like this now in EF CF 6.1+:
public class User
{
public int UserId{get;set;}
[StringLength(450)]
[Index(IsUnique=true)]
public string UserName{get;set;}
}
Update:
if you use Fluent:
public class UserMap : EntityTypeConfiguration<User>
{
public UserMap()
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onCreateOptionsMenu inside Fragments
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Interesting note: if you also override onCreateOptionsMenu in your containing Activity, both options menu items will be displayed.
– Adam Johns
Mar 4 '15 at 4:51
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Exception thrown in NSOrderedSet generated accessors
... @DerekH isEqualToSet is a method only NSSet has, so my guess is you've converted, created, or are treating a pointer as an NSArray before passing back to the NSManagedObject, which should if any reason be calling isEqualToOrderedSet to determine if the set needs to even change or be left as is.
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How to cast an object in Objective-C
...tive-C works like Java, just remember to add asterisks to variables that point to Obj-C objects."
– Dan Rosenstark
Jun 14 '10 at 3:43
2
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How to clone ArrayList and also clone its contents?
... obviously, you will have to get your Dog class to implement the Cloneable interface and override the clone() method.
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Measuring text width to be drawn on Canvas ( Android )
... drawn on an Android canvas using the drawText() method according to the Paint used to draw it?
7 Answers
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Volatile vs Static in Java
...stitute for proper synchronisation!
For instance:
private static volatile int counter = 0;
private void concurrentMethodWrong() {
counter = counter + 5;
//do something
counter = counter - 5;
}
Executing concurrentMethodWrong concurrently many times may lead to a final value of counter diff...
Why use String.Format? [duplicate]
...fic number of + operators all specified in a single expression it will be converted, by the compiler, into a single call to string.Concat, and there will not be any intermediate strings created. Using a StringBuilder would in fact hurt performance, not help it, since Concat can create an internal ...
How to get the date from jQuery UI datepicker
...st parameter is in this case the selected Date as String. Use parseDate to convert it to a JS Date Object.
See http://docs.jquery.com/UI/Datepicker for the full jQuery UI DatePicker reference.
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