大约有 48,000 项符合查询结果(耗时:0.0654秒) [XML]

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Why do this() and super() have to be the first statement in a constructor?

...ct those args inline as you are doing, or pass them in to your constructor and then pass them to super: public MySubClassB extends MyClass { public MySubClassB(Object[] myArray) { super(myArray); } } If the compiler did not enforce this you could do this: public M...
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Creating and throwing new exception

How I can create and throw a new exception in PowerShell? 1 Answer 1 ...
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Git: How to return from 'detached HEAD' state

...flog to find the hashes of previously checked out commits. A shortcut command to get to your last checked out branch (not sure if this work correctly with detached HEAD and intermediate commits though) is git checkout - sha...
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Array.sort() doesn't sort numbers correctly [duplicate]

In Chrome 14, and Firefox 5 (haven't tested other browsers), the following code doesn't sort the numbers correctly: 5 Answe...
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Stock ticker symbol lookup API [closed]

...hat just offers a simple symbol lookup service? i.e., input a company name and it will tell you the ticker symbol? I've tried just screen-scraping Google Finance, but after a little while it rate limits you and you have to enter a CAPTCHA. I'm trying to batch-lookup about 2000 ticker symbols. Any id...
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Command line to remove an environment variable from the OS level configuration

Windows has the setx command: 9 Answers 9 ...
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In MySQL queries, why use join instead of where?

...plicit is almost universally better. Conclusion Short of familiarity and/or comfort, I don't see any benefit to continuing to use the ANSI-89 WHERE clause instead of the ANSI-92 JOIN syntax. Some might complain that ANSI-92 syntax is more verbose, but that's what makes it explicit. The more e...
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Can I access constants in settings.py from templates in Django?

...quently-used settings constants to the template such as settings.MEDIA_URL and some of the language settings if you use django's built in generic views or pass in a context instance keyword argument in the render_to_response shortcut function. Here's an example of each case: from django.shortcuts ...
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Concatenating string and integer in python

... Modern string formatting: "{} and {}".format("string", 1) share | improve this answer | follow | ...
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jQuery lose focus event

I'm trying to show up a container if a input field gets the focus and - that's the actual problem - hide the container if focus is lost. Is there an opposite event for jQuery's focus? ...