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How do I get the fragment identifier (value after hash #) from a URL?

... To be honest, IE8 is so insecure, all the payment gateways basically is going to drop any browser not supporting TLS 1.2 next week (30 June 2018), you will not be able to do payments from them at all. So that makes all these old crappy browsers useless for an...
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How can I convert ArrayList to ArrayList?

... Since this is actually not a list of strings, the easiest way is to loop over it and convert each item into a new list of strings yourself: List<String> strings = list.stream() .map(object -> Objects.toString(object, null)) .co...
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Android Min SDK Version vs. Target SDK Version

... the application to run. The Android system will prevent the user from installing the application if the system's API Level is lower than the value specified in this attribute. You should always declare this attribute. android:targetSdkVersion An integer designating the API Level that the ap...
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Can someone explain in simple terms to me what a directed acyclic graph is?

...t a directed acyclic graph is? I have looked on Wikipedia but it doesn't really make me see its use in programming. 13 Answ...
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Implementing two interfaces in a class with same method. Which interface method is overridden?

...where you need to implement two Colliding Interface, say Foo and Bar. Basically you have your class implement one of the interfaces, say Foo, and provide a Bar asBar() method to return an inner class that implements the second Bar interface. Not perfect since your class is ultimately not "a Bar", bu...
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jQuery counting elements by class - what is the best way to implement this?

What I'm trying to do is to count all of the elements in the current page with the same class and then I'm going to use it to be added onto a name for an input form. Basically I'm allowing users to click on a <span> and then by doing so add another one for more of the same type of items. But...
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How do you make sure email you send programmatically is not automatically marked as spam?

...these accounts exist, read what's sent to them, and act on complaints. Finally, make it really easy to unsubscribe. Otherwise, your users will unsubscribe by pressing the spam button, and that will affect your reputation. That said, getting Hotmail to accept your emails remains a black art. ...
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How to detect Ctrl+V, Ctrl+C using JavaScript?

...paste"></textarea> <br><br> <h3>Ctrl+c Ctrl+v allowed</h3> <textarea></textarea> Also just to clarify, this script requires the jQuery library. Codepen demo EDIT: removed 3 redundant lines (involving e.which) thanks to Tim Down's suggestion (s...
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Java Naming Convention with Acronyms [closed]

...tion is not always followed in Java. Four character acronyms do seem to usually use mixed case, but even the JCL is not consistent about three letter acronyms. Most of them seem to be all uppercase, like 'URL', 'XML', 'SQL', and 'DOM', but there are some exceptions like 'Jar'. Conclusion For Java:...
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Android Whatsapp/Chat Examples [closed]

...e to understand how chat applications are programmed. There is a website called Scringo. These awesome people provide their own SDK which you can integrate in your existing application to exploit cool features like radaring, chatting, feedback, etc. So if you are looking to integrate chat in applic...