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How to tell if JRE or JDK is installed

I have one computer that I intentionally installed JDK on. I have another computer with JRE, for, among other things, testing. However, when I got a java application working on this computer, and then tried it on another, it complained that JDK was required. How can I check if JDK was somehow instal...
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SSMS插件开发指南 - C/C++ - 清泛网 - 专注C/C++及内核技术

...(C:\ProgramData\Application Data\Microsoft\MSEnvShared\Addins\) Will install add-in for all users on the machine. Putting SSMSAddin.addin into %APPDATA%\Microsoft\MSEnvShared\Addins\ (C:\Users\UserName\AppData\Roaming\Microsoft\MSEnvShared\Addins\) will install for specific user only. ...
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How can I split and trim a string into parts all on one line?

I want to split this line: 8 Answers 8 ...
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Get only part of an Array in Java?

...answered Jun 12 '12 at 17:30 K-balloK-ballo 74.8k1919 gold badges140140 silver badges161161 bronze badges ...
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Meaning of @classmethod and @staticmethod for beginner? [duplicate]

...ect as the first parameter, whereas staticmethod can have no parameters at all. Example class Date(object): def __init__(self, day=0, month=0, year=0): self.day = day self.month = month self.year = year @classmethod def from_string(cls, date_as_string): ...
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How do I use installed packages in PyCharm?

...you use the os (ex. apt-get), or pip in a virtualenv, packages will be installed to a location already on the path. In your example, GNU Radio is installed to the system Python 2's standard site-packages location, which is already in the path. Pointing PyCharm at the correct interpreter is enough;...
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How to duplicate a whole line in Vim?

... To copy two lines, it's even faster just to go yj or yk, especially since you don't double up on one character. Plus, yk is a backwards version that 2yy can't do, and you can put the number of lines to reach backwards in y9j or y2k, etc.. Only difference is that your count has to be n-1 ...
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What is the best way to find the users home directory in Java?

... variants. I am looking for a snippet of code that can accomplish this for all platforms, and a way to detect the platform. ...
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How to define an enum with string value?

... @ShaunLuttin: enums are just "named numbers" - so a string enum really doesn't fit in with that model at all. – Jon Skeet Aug 12 '17 at 6:55  |  ...
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ActiveRecord OR query

How do you do an OR query in Rails 3 ActiveRecord. All the examples I find just have AND queries. 14 Answers ...