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Validating URL in Java

I wanted to know if there is any standard APIs in Java to validate a given URL? I want to check both if the URL string is right i.e. the given protocol is valid and then to check if a connection can be established. ...
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How should the View<em>Mem>odel close the for<em>mem>?

I'<em>mem> trying to learn WPF and the <em>Mem>VV<em>Mem> proble<em>mem>, but have hit a snag. This question is si<em>mem>ilar but not quite the sa<em>mem>e as this one (handling-dialogs-in-wpf-with-<em>mem>vv<em>mem>) ... ...
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android.view.InflateException: Binary X<em>Mem>L file: Error inflating class frag<em>mem>ent

I have a very frustrating error that I cannot explain. I created an Android application that uses Android AppCo<em>mem>pat to <em>mem>ake it co<em>mem>patible with older versions. Here is <em>mem>y <em>mem>ain activity layout file: ...
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how to stop browser back button using javascript

I a<em>mem> doing an online quiz app in php. I want to restrict the user fro<em>mem> going back in an exa<em>mem>. I have tried the following script but it stops <em>mem>y ti<em>mem>er. What should I do? ...
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Is it possible to listen to a “style changeevent?

Is it possible to create an event listener in jQuery that can be bound to any style changes? For exa<em>mem>ple, if I want to "do" so<em>mem>ething when an ele<em>mem>ent changes di<em>mem>ensions, or any other changes in the style attribute I could do: ...
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Differences between Octave and <em>Mem>ATLAB? [closed]

I'<em>mem> a progra<em>mem><em>mem>er who knows Python, Ruby and so<em>mem>e C who is trying to decide whether to learn GNU Octave or <em>Mem>atlab. I know that they have a lot in co<em>mem><em>mem>on , but it isn't clear to <em>mem>e how si<em>mem>ilar the syntax is or even the data structures are. The above link shows several exa<em>mem>ples where they are syntacti...
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Bootstrap 3 collapsed <em>mem>enu doesn't close on click

I have a <em>mem>ore or less standard navigation fro<em>mem> bootstrap 3 24 Answers 24 ...
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How does the new auto<em>mem>atic reference counting <em>mem>echanis<em>mem> work?

Can so<em>mem>eone briefly explain to <em>mem>e how ARC works? I know it's different fro<em>mem> Garbage Collection, but I was just wondering exactly how it worked. ...
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Is inline asse<em>mem>bly language slower than native C++ code?

I tried to co<em>mem>pare the perfor<em>mem>ance of inline asse<em>mem>bly language and C++ code, so I wrote a function that add two arrays of size 2000 for 100000 ti<em>mem>es. Here's the code: ...
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How do I send a POST request as a JSON?

I want to send a POST request, but one of the fields should be a list of nu<em>mem>bers. How can I do that ? (JSON?) 8 Answers ...