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Java optional parameters
...ber that you could get more than one parameter so Java puts them inside an array. For example, to retrieve a single parameter you would check the contents of the array first: 'code' boolean flag = (optionalFlag.length < 1)?false:optionalFlag[0];
– Salvador Valencia
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What does immutable mean?
...ing of the number 2? It sounds absurd, yet we do this with our objects and arrays all the time.
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How to represent empty char in Java Character class
...int index = s.indexOf('d');
// delete a char from a char[]
char[] array = s.toCharArray();
char[] tmp = new char[array.length-1];
System.arraycopy(array, 0, tmp, 0, index);
System.arraycopy(array, index+1, tmp, index, tmp.length-index);
System.err.println(new String(tmp));
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How to return a result from a VBA function
...ue -- but e.g. if the return type is Variant and your goal is to return an array then something like ReDim test(1 to 100) will trigger an error. Also, even though it is possible to treat basic type like Integers like that it is considered somewhat unidiomatic. It makes the code harder to read. VBA p...
What is the difference between char * const and const char *?
...ean separation of declared-variable names and their types (a pointer to an array of pointers to integers would be var foo: ^Array[3..4] of ^Integer;`. That'd be some funny nested parenthesized thing in C, I think.
– supercat
Aug 28 '13 at 18:54
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Are global variables in PHP considered bad practice? If so, why?
...ike preg_replace_callback() like this:
preg_replace_callback('!pattern!', array($obj, 'method'), $str);
See callbacks for more.
The point is that objects have been bolted onto PHP and in some ways lead to some awkwardness.
Don't concern yourself overly with applying standards or constructs from...
What's the difference between BaseAdapter and ArrayAdapter?
I want to know the difference between using BaseAdapter and ArrayAdapter .
6 Answers
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What does Ruby have that Python doesn't, and vice versa?
... a yield statement.
For example, a simple definition of an each method on Array might be something like:
class Array
def each
for i in self
yield(i) # If a block has been passed, control will be passed here.
end
end
end
Then you can invoke this like so:
# Add five ...
Does VBA have Dictionary Structure?
Does VBA have dictionary structure? Like keyvalue array?
9 Answers
9
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Practical use of `stackalloc` keyword
... computations or interop). By using stackalloc instead of a heap allocated array, you create less GC pressure (the GC needs to run less), you don't need to pin the arrays down, it's faster to allocate than a heap array, an it is automatically freed on method exit (heap allocated arrays are only deal...