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Why is the String class declared final in Java?

...emented as immutable objects. You should read about immutability to understand more about it. One advantage of immutable objects is that You can share duplicates by pointing them to a single instance. (from here). If String were not final, you could create a subclass and have two strings tha...
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Convert HTML + CSS to PDF [closed]

I have an HTML (not XHTML) document that renders fine in Firefox 3 and IE 7. It uses fairly basic CSS to style it and renders fine in HTML. ...
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Loading Backbone and Underscore using RequireJS

I'm trying to load Backbone and Underscore (as well as jQuery) with RequireJS. With the latest versions of Backbone and Underscore, it seems kind of tricky. For one, Underscore automatically registers itself as a module, but Backbone assumes Underscore is available globally. I should also note that ...
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How to check if hex color is “too black”?

...e darkness of a color chosen by a color picker to see if it's "too black", and if so, set it to white. I thought I could use the first characters of the hex value to pull this off. It's working, but it's switching some legitimately "light" colors too. ...
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How can I test https connections with Django as easily as I can non-https connections using 'runserv

I have an application that uses "secure" cookies and want to test it's functionality without needing to set up a complicated SSL enabled development server. Is there any way to do this as simply as I can test non-encrypted requests using ./manage.py runserver ? ...
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How to return a string value from a Bash function

... There is no better way I know of. Bash knows only status codes (integers) and strings written to the stdout. share | improve this answer | follow | ...
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Why do people say that Ruby is slow? [closed]

I like Ruby on Rails and I use it for all my web development projects. A few years ago there was a lot of talk about Rails being a memory hog and about how it didn't scale very well but these suggestions were put to bed by Gregg Pollack here. ...
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Difference between natural join and inner join

What is the difference between a natural join and an inner join? 11 Answers 11 ...
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How to capitalize the first character of each word in a string

...t into Java that capitalizes the first character of each word in a String, and does not affect the others? 51 Answers ...
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Can I set background image and opacity in the same property?

I can see in CSS references how to set image transparency and how to set a background image . But how can I combine these two in order to set a transparent background image? ...