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Why an abstract class implementing an interface can miss the declaration/implementation of one of th
...rious thing happens in Java when you use an abstract class to implement an interface: some of the interface's methods can be completely missing (i.e. neither an abstract declaration or an actual implementation is present), but the compiler does not complain.
...
What to do about Eclipse's “No repository found containing: …” error messages?
...20917-0436 No
repository found containing:
osgi.bundle,org.eclipse.emf.converter,2.5.0.v20120917-0436 No
repository found containing:
osgi.bundle,org.eclipse.emf.databinding,1.2.0.v20120917-0436 No
repository found containing:
osgi.bundle,org.eclipse.emf.databinding.edit,1.2.0.v20120917-...
Split comma-separated strings in a column into separate rows
... use separate_rows:
separate_rows(v, director, sep = ",")
You can use the convert = TRUE parameter to automatically convert numbers into numeric columns.
4) with base R:
# if 'director' is a character-column:
stack(setNames(strsplit(df$director,','), df$AB))
# if 'director' is a factor-column:
sta...
gcc warning" 'will be initialized after'
...itializer list in the same order as they appear in the class
Class C {
int a;
int b;
C():b(1),a(2){} //warning, should be C():a(2),b(1)
}
or you can turn -Wno-reorder
share
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improve thi...
How to use Swift @autoclosure
...akes no argument:
func f(pred: () -> Bool) {
if pred() {
print("It's true")
}
}
To call this function, we have to pass in a closure
f(pred: {2 > 1})
// "It's true"
If we omit the braces, we are passing in an expression and that's an error:
f(pred: 2 > 1)
// error: '&g...
How to Execute SQL Server Stored Procedure in SQL Developer?
...END. Here is a working script.
ALTER Proc [dbo].[DepartmentAddOrEdit]
@Id int,
@Code varchar(100),
@Name varchar(100),
@IsActive bit ,
@LocationId int,
@CreatedBy int,
@UpdatedBy int
AS
IF(@Id = 0)
BEGIN
INSERT INTO Department (Code,Name,IsActive,LocationId,CreatedBy,UpdatedBy,CreatedA...
How to set the UITableView Section title programmatically (iPhone/iPad)?
I've created a UITableView in Interface Builder using storyboards . The UITableView is setup with static cells and a number of different sections.
...
Transferring ownership of an iPhone app on the app store
... This answer should be downvoted. It seems that the guy just converted his indie account to a business account, which obviously will keep all your app reviews and updates.
– samvermette
Oct 30 '12 at 21:53
...
How do I execute a command and get the output of the command within C++ using POSIX?
...
@Yasky: When the program being executed is int main(){ puts("ERROR"); }.
– dreamlax
Dec 16 '13 at 21:03
8
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What is the difference between declarative and imperative programming? [closed]
...le, let's start with this collection, and choose the odd numbers:
List<int> collection = new List<int> { 1, 2, 3, 4, 5 };
With imperative programming, we'd step through this, and decide what we want:
List<int> results = new List<int>();
foreach(var num in collection)
{
...