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java.lang.UnsupportedClassVersionError Unsupported major.minor version 51.0 [duplicate]
...nsupportedClassVersionError happens because of a higher JDK during compile time and lower JDK during runtime.
Here's the list of versions:
Java SE 9 = 53,
Java SE 8 = 52,
Java SE 7 = 51,
Java SE 6.0 = 50,
Java SE 5.0 = 49,
JDK 1.4 = 48,
JDK 1.3 = 47,
JDK 1.2 = 46,
JDK 1.1 = 45
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LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...分使用，它将用拟随机数填满集属性。通常，声明一个m×n的二维表，m表示运行实验的次数，n表示每次实验所需的随机数的个数。在行内，随机数是独立分布的；在行间，随机数是非常均匀的。这些随机数是用“分层取样”...
Way to ng-repeat defined number of times instead of repeating over array?
Is there a way to ng-repeat a defined number of times instead of always having to iterate over an array?
26 Answers
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How do I clone a Django model instance object and save it to the database?
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Worth noting that this quotes Django 1.2, we're now up to Django 1.4. Haven't tested whether or not this works, but don't use this answer without being sure that it works for you.
– Joe
Oct 4 '12 at 11:37
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How can I tell how many objects I've stored in an S3 bucket?
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Simply downloading the list of all your objects will actually take some time and cost some money if you have 50 million objects stored.
Also see this thread about StorageObjectCount - which is in the usage data.
An S3 API to get at least the basics, even if it was hours old, would be great.
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How do I start Mongo DB from Windows?
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Saved a huge amount of time by explaining
– Prashanth
Mar 5 '18 at 11:34
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Python: Check if one dictionary is a subset of another larger dictionary
...f not hashable, even using iteritems() instead of items() leads to about a 1.2x improvement. This was done using Python 2.7.
– Chad
Mar 29 '16 at 21:47
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Django URL Redirect
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@felix001 btw, HTTP 500 usually (as in 99% of the times) means you have a syntax error, take a look at this - docs.djangoproject.com/en/dev/howto/error-reporting/…. When a site is under development it is always good to have DEBUG = True or at least set the ADMINS option - ...
How to view corresponding SQL query of the Django ORM's queryset?
...ike to have summary with sumup of number of executed queries as well total time it took: dabapps.com/blog/logging-sql-queries-django-13
– andilabs
May 13 '15 at 10:07
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Swift: Convert enum value to String?
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In Swift 1.2 you can use: println(Audience.Friends.rawValue)
– Oleg Popov
Aug 13 '15 at 4:19
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