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how to hide a vertical scroll bar when not needed

...taller than 400px which is the height of the textbox. Try this: http://jsfiddle.net/G9rfq/1/ I set overflow:auto on the text box, and made the textbox the same size as the div. Also I don't believe it's valid to have a div inside a label, the browser will render it, but it might cause some funky ...
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Update a column value, replacing part of a string

...iversity SET course_name = REPLACE(course_name, '&amp', '&') WHERE id = 1 Results: Engineering &amp Technology => Engineering & Technology share | improve this answer | ...
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App Inventor 2 SQLite 拓展:超流行兼容主流SQL语法的迷你本地数据库引擎 ...

...: cn.fun123.SQLite.aix SQLite SQLite 是 Android 内置的小型、快速、独立的 SQL(结构化查询语言)数据库引擎。 SQL 语句用于创建、选择、更新和删除一个或多个表中的数据。SQL 允许表之间建立复杂的关系,并提供...
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How to make a Java class that implements one interface with two generic types?

...ring the Consumer<*> instances in instance fields if get*Consumer is called often. – TWiStErRob Apr 24 '15 at 10:44 add a comment  |  ...
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Allow user to select camera or gallery for image

... for me but I had one problem where using the camera as the source was not calling onActivityResult and the camera itself was not dismissing. The root cause was a missing permission in the manifest: <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> ...
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recursion versus iteration

... Recursion is usually much slower because all function calls must be stored in a stack to allow the return back to the caller functions. In many cases, memory has to be allocated and copied to implement scope isolation. Some optimizations, like tail call optimization, make recur...
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Extending from two classes

...string foo() { return super.foo(); } //What do I do? Which method should I call? } C++ and others have a couple ways to solve this, eg string foo() { return B::foo(); } but Java only uses interfaces. The Java Trails have a great introduction on interfaces: http://download.oracle.com/javase/tu...
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Recommended SQL database design for tags or tagging [closed]

...heard of a few ways to implement tagging; using a mapping table between TagID and ItemID (makes sense to me, but does it scale?), adding a fixed number of possible TagID columns to ItemID (seems like a bad idea), Keeping tags in a text column that's comma separated (sounds crazy but could work). I'v...
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jQuery find parent form

..., there is a new 'form' attribute which allows you to have the element outside the parent form. This should be checked first. – mcintyre321 Aug 4 '15 at 11:00 add a comment ...
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Javascript seconds to minutes and seconds

... What's the sense of having negative time? Logically a time difference is always positive – mcont Dec 29 '14 at 19:08 ...