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java.lang.UnsupportedClassVersionError Unsupported major.minor version 51.0 [duplicate]
...ortedClassVersionError 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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PostgreSQL query to list all table names?
...able_name
FROM information_schema.tables
WHERE table_schema='public'
AND table_type='BASE TABLE';
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How to save password when using Subversion from the console
... no. Change it to yes (or just comment it out because it defaults to yes), and the next time you give Subversion your password it should save it.
You might want to ensure that the owner and permissions of ~/.subversion/config are correct (no public or group access; 600).
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How to analyze a java thread dump?
I am trying to understand more about java, especially about memory management and threads.
For this reason I have recently found interest in looking at thread dumps.
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How do I register a DLL file on Windows 7 64-bit?
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Type regsvr32 name.dll into the Command Prompt (executed in elevated mode!) and press "Enter." Note that name.dll should be replaced with the name of the DLL that you want to register. For example, if you want to register the iexplore.dll, type regsvr32 iexplor...
How to pass parameters on onChange of html select
I am a novice at JavaScript and jQuery. I want to show one combobox-A, which is an HTML <select> with its selected id and contents at the other place on onChange().
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How can I convert a character to a integer in Python, and viceversa?
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Use chr() and ord():
>>> chr(97)
'a'
>>> ord('a')
97
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Ruby ampersand colon shortcut [duplicate]
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Your question is wrong, so to speak. What's happening here isn't "ampersand and colon", it's "ampersand and object". The colon in this case is for the symbol. So, there's & and there's :foo.
The & calls to_proc on the object, and passes it as a block to the method. In Rails, to_proc is im...
Keeping it simple and how to do multiple CTE in a query
I have this simple T-SQL query, it emits a bunch of columns from a table and also joins information from other related tables.
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Using :before and :after CSS selector to insert Html [duplicate]
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Another problem with your code is " inside a " block. You should mix ' and " (class='headingDetail').
If content did support HTML you could end up in an infinite loop where content is added inside content.
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