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Understanding checked vs unchecked exceptions in Java
...e exception. If an exception occurs in most of the cases you should choose one of these:
log it and return
rethrow it (declare it to be thrown by the method)
construct a new exception by passing the current one in constructor
Now, couldn't the above code also be a checked exception? I can try t...
Return string without trailing slash
...re str ends with a / slash. You should have two assertions (or two tests), one with a slash and one without.
– Seth Holladay
Jul 14 at 21:43
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How do I get the type of a variable?
In C++, how does one find the type of a variable?
10 Answers
10
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Windows recursive grep command-line
...line
$ Line position: end of line
[class] Character class: any one character in set
[^class] Inverse class: any one character not in set
[x-y] Range: any characters within the specified range
\x Escape: literal use of metacharacter x
\<xyz Word position: beginning ...
Run a task every x-minutes with Windows Task Scheduler [closed]
...0, and the option Run task as soon as possible after... is on, will it run one or six instances of the command?
– Andreas Rejbrand
Feb 3 '13 at 15:15
7
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When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?
...to void*), and it can also call explicit conversion functions (or implicit ones). In many cases, explicitly stating static_cast isn't necessary, but it's important to note that the T(something) syntax is equivalent to (T)something and should be avoided (more on that later). A T(something, something_...
How to multiply duration by integer?
... added a line to a function to make it take a random time to return (up to one second)
5 Answers
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How to force Selenium WebDriver to click on element which is not currently visible?
... make sure you look at computed style):
visibility != hidden
display != none (is also checked against every parent element)
opacity != 0 (this is not checked for clicking an element)
height and width are both > 0
for an input, the attribute type != hidden
Your element is matching one of thos...
Under what circumstances are linked lists useful?
...al-world usage sample below - that would not be there if @Neil hadn't mentioned FORTRAN. ;-)
For example, ConcurrentDictionary<TKey, TValue> in .NET 4.0 RC use linked lists to chain items that hash to the same bucket.
The underlying data structure for ConcurrentStack<T> is also a link...
Java's final vs. C++'s const
...y must be set before the constructor has finished, this can be achieved in one of two ways:
public class Foo {
private final int a;
private final int b = 11;
public Foo() {
a = 10;
}
}
In C++ you will need to use initialisation lists to give const members a value:
class Foo {
...