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Why is my Spring @Autowired field null?

... The field annotated @Autowired is null because Spring doesn't know about the copy of MileageFeeCalculator that you created with new and didn't know to autowire it. The Spring Inversion of Control (IoC) container has three main logical components: a registry (called the ApplicationConte...
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How do I select the parent form based on which submit button is clicked?

... variable that's different). A user will only fill in one form, and I'd like to validate/etc all the forms with only one JS script. ...
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How to select a node using XPath if sibling node has a specific value?

... Not sure why everybody is querying for siblings, you can also check for <bb/>-elements matching the predicate from <a/>'s predicate: //a[bb/text() = "zz"]/cc/text() share | im...
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Default string initialization: NULL or Empty? [closed]

I have always initialized my strings to NULL, with the thinking that NULL means the absence of a value and "" or String.Empty is a valid value. I have seen more examples lately of code where String.Empty is considered the default value or represents no value. This strikes me as odd, with the newly...
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Assign variable in if condition statement, good practice or not? [closed]

I moved one years ago from classic OO languages such like Java to JavaScript. The following code is definitely not recommended (or even not correct) in Java: ...
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Rails 3 execute custom sql query without a model

... Works on Rails 4 also. – Leigh McCulloch Jan 6 '15 at 16:07 ...
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How to destroy a DOM element with jQuery?

... Is $target.remove(); what you're looking for? https://api.jquery.com/remove/ share | improve this answer | follow | ...
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How to change a DIV padding without affecting the width/height ?

...reasing the original DIV width/height or increasing it, is there a CSS trick for that, or an alternative using padding? 5 A...
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How to change the default GCC compiler in Ubuntu?

...gher one to gcc-3.3. To set your alternatives, you should have something like this (assuming your gcc installation is located at /usr/bin/gcc-3.3, and gcc-4.4's priority is less than 50): update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-3.3 50 --edit-- Finally, you can also use the in...
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AngularJS - difference between pristine/dirty and touched/untouched

... georgeawg 45.8k1212 gold badges6060 silver badges8080 bronze badges answered Jul 29 '14 at 21:48 Yuriy Rozhovetskiy...