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Can a class extend both a class and implement an Interface

...ll also change. Second, inheritance is used to SPECIALIZE, not EXTEND with extra functionality. This is the most misunderstood thing in OOP. As a rule of thumb I tend to extend abstract classes only. – Michał Rudnicki Mar 16 '09 at 21:25 ...
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Android splash screen image sizes to fit all devices

...ldpi ~ 120dpi) Medium Density (mdpi ~ 160dpi) High Density (hdpi ~ 240dpi) Extra-High Density (xhdpi ~ 320dpi) (These dpi values are approximations, since custom built devices will have varying dpi values) What you (if you're a designer) need to know from this is that Android basically chooses fro...
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Are the PUT, DELETE, HEAD, etc methods available in most web browsers?

... @Mirich the form only supports POST. So we send POST with extra data, which the server knows means: ah, I should treat this like a PUT. – Ciro Santilli 郝海东冠状病六四事件法轮功 Aug 24 '18 at 7:17 ...
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gulp globbing- how to watch everything below directory

...gger for some changes in the parent directory (e.g., ./.git/). Adding the extra /* on the end seems to avoid that problem: gulp.watch('./build/**/*', ...). – medmunds Jul 2 '15 at 0:35 ...
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github markdown colspan

...riting, this works on GitHub wikis. However, GH doesn't know you've added extra columns, so it adds blank cells on the right. – cxw Nov 10 '18 at 1:46 ...
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How to change border color of textarea on :focus

...us as you are already using that class on the textarea. You get rid of the extra selector that way. – Hoshts Apr 22 '13 at 21:10 1 ...
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How does the Comma Operator work

...’t work since then the compiler just sees the comma operator between two char[], which cannot be overloaded. The code intentionally first calls the operator= and then subsequently operator, for each remaining element. – Konrad Rudolph Oct 9 '11 at 11:04 ...
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How do HashTables deal with collisions?

...ts/changes of HashMap objects in case of high collisions. The alternative String hash function added in Java 7 has been removed. Buckets containing a large number of colliding keys will store their entries in a balanced tree instead of a linked list after certain threshold is reached. Above chan...
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Exploitable PHP functions

...y()); List of functions which accept callbacks These functions accept a string parameter which could be used to call a function of the attacker's choice. Depending on the function the attacker may or may not have the ability to pass a parameter. In that case an Information Disclosure function l...
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How to make a great R reproducible example

... and your code in the console and get exactly the same as you have. Give extra information In most cases, just the R version and the operating system will suffice. When conflicts arise with packages, giving the output of sessionInfo() can really help. When talking about connections to other appli...