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Can I replace groups in Java regex?
...nt method:
public static String replaceGroup(String regex, String source, int groupToReplace, String replacement) {
return replaceGroup(regex, source, groupToReplace, 1, replacement);
}
public static String replaceGroup(String regex, String source, int groupToReplace, int groupOccurrence, Stri...
How do I make a textarea an ACE editor?
I'd like to be able to convert specific textareas on a page to be ACE editors.
5 Answers
...
What is the best way to check for Internet connectivity using .NET?
What is the fastest and most efficient way to check for Internet connectivity in .NET?
27 Answers
...
How do I automatically scroll to the bottom of a multiline text box?
I have a textbox with the .Multiline property set to true. At regular intervals, I am adding new lines of text to it. I would like the textbox to automatically scroll to the bottom-most entry (the newest one) whenever a new line is added. How do I accomplish this?
...
Can we write our own iterator in Java?
...
Sure. An iterator is just an implementation of the java.util.Iterator interface. If you're using an existing iterable object (say, a LinkedList) from java.util, you'll need to either subclass it and override its iterator function so that you return your own, or provide a means of wrapping a sta...
How to get number of rows using SqlDataReader in C#
...le who try to write their own code to be as generic as possible (usually pointlessly).
– MusiGenesis
Sep 5 '09 at 13:46
5
...
Create an empty data.frame
...ent column types :
df <- data.frame(Doubles=double(),
Ints=integer(),
Factors=factor(),
Logicals=logical(),
Characters=character(),
stringsAsFactors=FALSE)
str(df)
> str(df)
'data.frame': 0 obs. of 5 vari...
Java Reflection Performance
...eption
{
long start = System.currentTimeMillis();
for (int i=0; i<1000000; i++)
{
A a = new A();
a.doSomeThing();
}
System.out.println(System.currentTimeMillis() - start);
}
public static void doReflection() throws Excep...
How to make a countdown timer in Android?
... }
} catch (Exception e) {
e.printStackTrace();
}
}
};
handler.postDelayed(runnable, 0);
}
protected void onStop() {
super.onStop();
handler.removeCallbacks(runnable);
}
}
activity_...
Why do we need break after case statements?
...
Just always add a comment along the lines // Intentional fallthrough. when you omit a break. It's not so much a bad style as "easy to forget a break accidentally" in my opinion. P.S. Of course not in simple cases as in the answer itself.
– double...