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Android XML Percent Symbol

I have an array of strings in which the % symbol is used. Proper format for using the % is % . When I have a string in that array with multiple % it gives me this error. ...
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Counting the occurrences / frequency of array elements

In Javascript, I'm trying to take an initial array of number values and count the elements inside it. Ideally, the result would be two new arrays, the first specifying each unique element, and the second containing the number of times each element occurs. However, I'm open to suggestions on the form...
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Declaring pointers; asterisk on the left or right of the space between the type and name? [duplicate

I've seen mixed versions of this in a lot of code. (This applies to C and C++, by the way.) People seem to declare pointers in one of two ways, and I have no idea which one is correct, of if it even matters. ...
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Semicolon before self-invoking function? [duplicate]

What is the benefit of using semicolon before a self-invoking function in JavaScript? I saw this approach in few popular jQuery plugins and I'm curious to find if this is the next awesome thing in JavaScript that I don't know. ...
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How can I measure the similarity between two images? [closed]

I would like to compare a screenshot of one application (could be a Web page) with a previously taken screenshot to determine whether the application is displaying itself correctly. I don't want an exact match comparison, because the aspect could be slightly different (in the case of a Web app, depe...
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Convert a series of parent-child relationships into a hierarchical tree?

I have a bunch of name-parentname pairs, that I'd like to turn into as few heirarchical tree structures as possible. So for example, these could be the pairings: ...
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Why do you need to create a cursor when querying a sqlite database?

I'm completely new to Python's sqlite3 module (and SQL in general for that matter), and this just completely stumps me. The abundant lack of descriptions of cursor objects (rather, their necessity) also seems odd. ...
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Best practice for instantiating a new Android Fragment

I have seen two general practices to instantiate a new Fragment in an application: 13 Answers ...
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Difference between modes a, a+, w, w+, and r+ in built-in open function?

In the python built-in open function, what is the exact difference between the modes w , a , w+ , a+ , and r+ ? 6 An...
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How to replace DOM element in place using Javascript?

I am looking to replace an element in the DOM. For example, there is an <a> element that I want to replace with a <span> instead. ...