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Difference between class and type

Being new to Java, I'm confused between the concepts of class and type . For example, should the object "Hello World!" belong to the type String or class String ? Or maybe both? ...
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Is it possible to import a whole directory in sass using @import?

...re 119 Sass files in 17 directories. These correspond roughly to our views and are mainly used for adjustments, with the heavy lifting being handled by our custom framework. To me, a few lines of imported directories is a tad less complex than 119 lines of imported filenames. To address load order,...
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How to get a substring between two strings in PHP?

... one but really don't think it's the best way to go). Thinking of strpos and substr functions. Here's an example: 32 A...
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Convert a PHP object to an associative array

... )), ) Typecasting this way will not do deep casting of the object graph and you need to apply the null bytes (as explained in the manual quote) to access any non-public attributes. So this works best when casting StdClass objects or objects with only public properties. For quick and dirty (what y...
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How to split the name string in mysql?

...s. The first method will separate your fullname field into first, middle, and last names. The middle name will show as NULL if there is no middle name. SELECT SUBSTRING_INDEX(SUBSTRING_INDEX(fullname, ' ', 1), ' ', -1) AS first_name, If( length(fullname) - length(replace(fullname, ' ', '')...
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git: Apply changes introduced by commit in one repo to another repo

I have a repo1 and repo2 on local machine. They are very similar, but the latter is some kind of other branch ( repo1 is not maintained anymore). ...
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Do sessions really violate RESTfulness?

...client to server must contain all of the information necessary to understand the request, and cannot take advantage of any stored context on the server. Session state is therefore kept entirely on the client. according to the Fielding dissertation. So server side sessions violate the state...
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How to combine two or more querysets in a Django view?

I am trying to build the search for a Django site I am building, and in that search, I am searching in 3 different models. And to get pagination on the search result list, I would like to use a generic object_list view to display the results. But to do that, I have to merge 3 querysets into one. ...
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Why is 128==128 false but 127==127 is true when comparing Integer wrappers in Java?

... When you compile a number literal in Java and assign it to a Integer (capital I) the compiler emits: Integer b2 =Integer.valueOf(127) This line of code is also generated when you use autoboxing. valueOf is implemented such that certain numbers are "pooled", and i...
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Why do I need to do `--set-upstream` all the time?

...t branch. Or, to push to the current branch to a branch of the same name (handy for an alias): git push -u origin HEAD You only need to use -u once, and that sets up the association between your branch and the one at origin in the same way as git branch --set-upstream does. Personally, I think i...