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Can constructors throw exceptions in Java?
...to be careful of about throwing exceptions in the constructor: because the caller (usually) will have no way of using the new object, the constructor ought to be careful to avoid acquiring unmanaged resources (file handles etc) and then throwing an exception without releasing them. For example, if t...
How do I change the title of the “back” button on a Navigation Bar
...
This should be placed in the method that calls the ViewController titled "NewTitle".
Right before the push or popViewController statement.
UIBarButtonItem *newBackButton =
[[UIBarButtonItem alloc] initWithTitle:@"NewTitle"
...
Style bottom Line in Android
I need to create an android shape so that only the bottom has stroke (a dashed line). When I try the following, the stroke bisects the shape right through the center. Does anyone know how to get it right? the stroke needs to be the bottom line/border. I am using the shape as a background to a TextVi...
How to simulate a mouse click using JavaScript?
...celable: true
}
You can use it like this:
simulate(document.getElementById("btn"), "click");
Note that as a third parameter you can pass in 'options'. The options you don't specify are taken from the defaultOptions (see bottom of the script). So if you for example want to specify mouse coordina...
What is the difference between the different methods of putting JavaScript code in an ?
... he states that using the href section to execute JavaScript code is a bad idea. Even though you have stated that your users must have JavaScript enabled, there's no reason you can't have a simple HTML page that all your JavaScript links can point to for their href section in the event that someone...
How to get href value using jQuery?
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You need
var href = $(this).attr('href');
Inside a jQuery click handler, the this object refers to the element clicked, whereas in your case you're always getting the href for the first <a> on the page. This, incidentally, is why your example works but your real c...
How to check type of files without extensions in python?
...('greenland.png', mime=True)
'image/png'
The Python code in this case is calling to libmagic beneath the hood, which is the same library used by the *NIX file command. Thus, this does the same thing as the subprocess/shell-based answers, but without that overhead.
...
Vertically align text within a div [duplicate]
The code below (also available as a demo on JS Fiddle ) does not position the text in the middle, as I ideally would like it to. I cannot find any way to vertically centre text in a div , even using the margin-top attribute. How can I do this?
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How do I resolve ClassNotFoundException?
... Dependency resolution/version mismatches is a very common problem in basically all programming environments. We could say that all any program ever does is resolve such definitions... the question is always what/where is the definition and which version did you mean?
– master...
How to delete multiple buffers in Vim?
...endif
exe 'bd '.join(buffers, ' ')
endfunction
command! -nargs=1 BDExt :call s:BDExt(<f-args>)
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