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Why does InetAddress.isReachable return false, when I can ping the IP address?

...am getting failed and using ping I am getting icmp not permitted ? Do you know how to deal with it now ? – Yuvi Jan 7 '13 at 8:58 6 ...
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Is it possible to use raw SQL within a Spring Repository

...ollNo(String rollNo) { this.rollNo = rollNo; } } Now your Projection class is like bellow. It can those fields that you needed. public interface IUserProjection { int getId(); String getName(); String getRollNo(); } And Your Data Access Object(Dao) is like...
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Should I use px or rem value units in my CSS? [closed]

... TL;DR: use px. The Facts First, it's extremely important to know that per spec, the CSS px unit does not equal one physical display pixel. This has always been true – even in the 1996 CSS 1 spec. CSS defines the reference pixel, which measures the size of a pixel on a 96 dpi displa...
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How to “EXPIRE” the “HSET” child key in redis?

... this is why redis is such an awesome piece of software. they know where to keep it simple – tObi Jan 4 '19 at 21:25 add a comment  |  ...
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jQuery Ajax POST example with PHP

... Yes, I understand that now. But I found many examples that always put a $(document).ready block around so that the example is self-contained. I wrote the comment for a future user who may, like me, stumble on this and end-up reading the comment thr...
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How do I make JavaScript beep?

... Solution You can now use base64 files to produce sounds when imported as data URI. The solution is almost the same as the previous ones, except you do not need to import an external audio file. function beep() { var snd = new Audio("data...
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Should CSS always preceed Javascript?

...lt;title>CSS first</title> <script>var start = Date.now();</script> <link rel="stylesheet" href="style.css"> <script src="jquery.js"></script> <script src="test.js"></script> </head> <body> ...
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Advantages of using prototype, vs defining methods straight in the constructor? [duplicate]

...rer :) I didn't realize the efficiency difference - that's very useful to know. Same for the hoisting effect - tricky, indeed. Thanks for such a great answer, I learned a lot from it! – Leo Dec 22 '10 at 11:09 ...
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Python, creating objects

I'm trying to learn python and I now I am trying to get the hang of classes and how to manipulate them with instances. 4 An...
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Unit Testing bash scripts

...rtEquals works fine, but I think I'm just going to have to roll my own for now. – labyrinth Jul 7 '14 at 17:28 @labyri...