version | 易学教程

What version of Java is running in Eclipse?

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问题 How do I know what version of Java is being run in Eclipse? Is there a way to write code to find out? Is "JRE System Library [JavaSE-1.6]" in "Package Explorer" the right version? 回答1: The one the eclipse run in is the default java installed in the system (unless set specifically in the eclipse.ini file, use the -vm option). You can of course add more Java runtimes and use them for your projects The string you've written is the right one, but it is specific to your environment. If you want to

PyPI 400 upload error

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I created a package in PyPI named virtdc. I made some changes and uploaded 2 different versions 0.1.0 and 0.1.1. Now I deleted version 0.1.1 through the PyPI web interface and try to upload again with the same version number. It is giving me error as follows ... Writing virtdc-0.1.2/setup.cfg Creating tar archive removing 'virtdc-0.1.2' (and everything under it) running register Registering virtdc to http://pypi.python.org/pypi Server response (200): OK running upload Submitting dist/virtdc-0.1.2.tar.gz to http://pypi.python.org/pypi Upload failed (400): This filename has previously been used,

What is the Android Bundle Version and Version Code and how do they relate?

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a) What does the Android bundle version and version code denote? b) What is the difference between the bundle version and version code? i) Suppose I have a bundle version of 0.137 , how does the version code relate to this? Can the version code just be 137? ii) What happens when I release bundle version 1.0 next? Can I just call the version code 10 ? c) How do they relate? What's the right way to number the bundle versions? N.B. There does not seem to be a source that explains the difference, in search. I have been very haphazardly numbering my bundles till now, but I'd like to figure out how

How to get version of SharePoint installed?

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How can I get the version of SharePoint that is installed on my server? It's crazy that there is no easy way to find out what Edition (SKU) of SharePoint 2013 are you running. To find out, you have to dig the registry: Open Regedit Navigate to HKLM\SOFTWARE\Microsoft\Shared Tools\Web Server Extensions\15.0\WSS\InstalledProducts Compare the guids with these: C5D855EE-F32B-4A1C-97A8-F0A28CE02F9C -- SharePoint Server 2013 CBF97833-C73A-4BAF-9ED3-D47B3CFF51BE -- SharePoint Server 2013 Preview B7D84C2B-0754-49E4-B7BE-7EE321DCE0A9 -- SharePoint Server 2013 Enterprise 298A586A-E3C1-42F0-AFE0

Check mySQL version on Mac 10.8.5

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How can I check (step-by-step ) the version of mySQL installed on my Mac 10.8.5? I tried using command prompt, but couldn't figure out. Every time you used the mysql console, the version is shown. $ mysql -u user Successful console login shows the following which includes the mysql server version. Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1432 Server version: 5.5.9-log Source distribution Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other

The Angular Compiler requires TypeScript >=2.7.2 and <2.8.0 but 2.8.3 was found instead

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问题 I starting getting this error on my Angular app: The Angular Compiler requires TypeScript >=2.7.2 and <2.8.0 but 2.8.3 was found instead and when I try to downgrade typescript to the right version doing: npm install -g typescript@2.7.2 it says updated 1 package. when I verify typescript version using npm view typescript version I still get 2.8.3 I even tried removing typescript entirely using npm uninstall -g typescript but when I verify typescript version again npm view typescript version I

Change default Python interpreter on Windows XP

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问题 I have two python versions: Python 2.5 and Python 2.7. When I'm setting up django, I want to use Python 2.7, but django is using Python 2.5 somehow. How can I make sure that django use Python 2.7? I'm using Windows XP 回答1: Change your PATH system environment variable to point to the version of Python you want to use. 回答2: Changing your PATH will help, if you always call python directly, rather than relying on file association. For example: "python foo.py" will run the 'foo' script with

What's the modern way of declaring which version of Perl to use?

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问题 When it come to saying what version of Perl we need for our scripts, we've got options, oh, brother, we've got options: use 5.010; use 5.010_001; use 5.10.0; use v5.10; use v5.10.0; All seem to work. perlcritic complains about all but the first two. (It's unfortunate that the v strings seem to have such flaws, since Perl 6 expects you to do use v6; for your Perl 6 scripts...) So, what should we be doing to indicate that we want to use a particular version of perl? 回答1: There are really only

How do I get the Scala version from within Scala itself?

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问题 This is not about command-line compiler options. How do I programmatically obtain the Scala version inside code? Alternatively, where does the Eclipse Scala plugin v2 store the path to scalac ? 回答1: This will work without access to scala-compiler.jar : Welcome to Scala version 2.9.1.final (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_26). Type in expressions to have them evaluated. Type :help for more information. scala> util.Properties.versionString res0: java.lang.String = version 2.9.1

Is there a compatibility matrix of Spring-boot and Spring-cloud?

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问题 I am wondering if a compatibility matrix exists between Springboot and Springcloud? I created a simple project on STS and am running into compatibility issues. <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.1.RELEASE</version> <relativePath />  </parent> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies