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How do I efficiently iterate over each entry in a Java Map?
...
Benchmark Mode Cnt Score Error Units
test3_UsingForEachAndJava8 avgt 10 0.308 ± 0.021 µs/op
test10_UsingEclipseMap avgt 10 0.309 ± 0.009 µs/op
test1_UsingWhileAndMapEntry avgt 10 0.380 ± 0.014 µs/op
test6_UsingForAndIte...
Storing R.drawable IDs in XML array
...encoding="utf-8"?>
<resources>
<integer-array name="random_imgs">
<item>@drawable/car_01</item>
<item>@drawable/balloon_random_02</item>
<item>@drawable/dog_03</item>
</integer-array>
</resources>
Then...
Set selected option of select box
... code into a $(document).ready:
$(function() {
$("#gate").val('gateway_2');
});
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The term “Context” in programming? [closed]
...e is what is called "Context"
E.g.
Patient goes to doc and says treat_me ( "I have a headache" ) Doc
office gives the patient a form to fill. Patient fills form. The form
is used by the doctor to carry out the "treat_me" request.
Here is how the request now looks :
treat_me ( "i have a...
Why can lambdas be better optimized by the compiler than plain functions?
...tantiation (created by the compiler):
template <>
void map<int*, _some_lambda_type>(int* begin, int* end, _some_lambda_type f) {
for (; begin != end; ++begin)
*begin = f.operator()(*begin);
}
… the compiler knows _some_lambda_type::operator () and can inline calls to it ...
How to change the foreign key referential action? (behavior)
...tep process:
Suppose, a table1 has a foreign key with column name fk_table2_id, with constraint name fk_name and table2 is referred table with key t2 (something like below in my diagram).
table1 [ fk_table2_id ] --> table2 [t2]
First step, DROP old CONSTRAINT: (reference)
ALTER ...
Check whether or not the current thread is the main thread
...be executed on the main thread, you can:
- (void)someMethod
{
dispatch_block_t block = ^{
// Code for the method goes here
};
if ([NSThread isMainThread])
{
block();
}
else
{
dispatch_async(dispatch_get_main_queue(), block);
}
}
...
What is the list of valid @SuppressWarnings warning names in Java?
... o.toString(); }. Some environments (e.g. NetBeans 7.3 w/ Java 6 JDK [1.6.0_41]) will generate "o possibly null" at the o.toString() call even though o can't be null at that point.
– par
Mar 13 '13 at 1:52
...
Manipulating an Access database from Java without ODBC
...Connection conn=DriverManager.getConnection(
"jdbc:ucanaccess://C:/__tmp/test/zzz.accdb");
Statement s = conn.createStatement();
ResultSet rs = s.executeQuery("SELECT [LastName] FROM [Clients]");
while (rs.next()) {
System.out.println(rs.getString(1));
}
Disclosure
At the time of ...
Difference between filter and filter_by in SQLAlchemy
Could anyone explain the difference between filter and filter_by functions in SQLAlchemy?
Which one should I be using?
...