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What are the differences between “generic” types in C++ and Java?
Java has generics and C++ provides a very strong programming model with template s.
So then, what is the difference between C++ and Java generics?
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When to use in vs ref vs out
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You should use out unless you need ref.
It makes a big difference when the data needs to be marshalled e.g. to another process, which can be costly. So you want to avoid marshalling the initial value when the method doesn't make use of it.
Beyond that, it also sho...
bind event only once
...
If you can apply it, probably want to take a look at event.preventDefault and event.stopPropagation
OR unbind and bind each time, within your method like
function someMethod()
{
$(obj).off('click').on('click', function(e) {
// put your...
Java: notify() vs. notifyAll() all over again
... a lot of explanations will pop up (leaving apart the javadoc paragraphs). It all boils down to the number of waiting threads being waken up: one in notify() and all in notifyAll() .
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Add margin between a RadioButton and its label in Android?
Is it possible to add a little bit of space between a RadioButton and the label while still using Android's built-in components? By default the text looks a little scrunched.
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Ruby 'require' error: cannot load such file
I've one file, main.rb with the following content:
13 Answers
13
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Is it possible to make anonymous inner classes in Java static?
In Java, nested classes can be either static or not. If they are static , they do not contain a reference to the pointer of the containing instance (they are also not called inner classes anymore, they are called nested classes).
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PHP: How to use array_filter() to filter array keys?
...'t as elegant as array_intersect_key($my_array, array_flip($allowed)), but it does offer the additional flexibility of performing an arbitrary test against the key, e.g. $allowed could contain regex patterns instead of plain strings.
You can also use ARRAY_FILTER_USE_BOTH to have both the value and...
Insert results of a stored procedure into a temporary table
...LECT * INTO [temp table] FROM [stored procedure] ? Not FROM [Table] and without defining [temp table] ?
30 Answers
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How to determine the first and last iteration in a foreach loop?
...ou could use a counter:
$i = 0;
$len = count($array);
foreach ($array as $item) {
if ($i == 0) {
// first
} else if ($i == $len - 1) {
// last
}
// …
$i++;
}
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