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Cast Double to Integer in Java
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Like this:
Double foo = 123.456;
Integer bar = foo.intValue();
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How to pass objects to functions in C++?
... that said function may change it. Example: With references, the call is foo(bar); whether the reference is const or not, with a pointer it is foo(&bar); and is more apparent that foo is being passed a mutable object.
– RC.
Jan 26 '10 at 12:43
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Type safety: Unchecked cast
...tually no difference between a HashMap<String,String> and HashMap<Foo,Bar> for any other Foo and Bar.
Use @SuppressWarnings("unchecked") and hold your nose. Oh, and campaign for reified generics in Java :)
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curl POST format for CURLOPT_POSTFIELDS
...Y_RFC1738 ]]] )
Simple example from the manual:
<?php
$data = array('foo'=>'bar',
'baz'=>'boom',
'cow'=>'milk',
'php'=>'hypertext processor');
echo http_build_query($data) . "\n";
/* output:
foo=bar&baz=boom&cow=milk&php=hyper...
How can I add reflection to a C++ application?
...ike this that make S.O. a great resource.
– fearless_fool
May 13 '14 at 16:00
5
Note that if you ...
How to convert Nonetype to int or string?
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In Python 3 you can use the "or" keyword too. This way:
foo = bar or 0
foo2 = bar or ""
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How to return dictionary keys as a list in Python?
...le for quite some time, even in Python 2. In function calls you can do def foo(*args): print(args) followed by foo(*{1:0, 2:0}) with the result (1, 2) being printed. This behavior is specified in the Calls section of the reference manual. Python 3.5 with PEP 448 just loosened the restrictions on whe...
How to measure elapsed time in Python?
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Given a function you'd like to time,
test.py:
def foo():
# print "hello"
return "hello"
the easiest way to use timeit is to call it from the command line:
% python -mtimeit -s'import test' 'test.foo()'
1000000 loops, best of 3: 0.254 usec per loop
Do not try...
On showing dialog i get “Can not perform this action after onSaveInstanceState”
... DialogFragment dialogFragment = (DialogFragment) fm.findFragmentByTag("foo");
if (dialogFragment != null)
{
dialogFragment.dismiss();
}
dialogFragment = GenericPromptSingleButtonDialogFragment.newInstance("title", "message", "button");
dialogF...
What does it mean if a Python object is “subscriptable” or not?
...d, the following are the only built-ins that are subscriptable:
string: "foobar"[3] == "b"
tuple: (1,2,3,4)[3] == 4
list: [1,2,3,4][3] == 4
dict: {"a":1, "b":2, "c":3}["c"] == 3
But mipadi's answer is correct - any class that implements __getitem__ is subscriptable
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