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com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
... Communications link failure, then it means that the DB isn't reachable at all. This can have one or more of the following causes:
IP address or hostname in JDBC URL is wrong.
Hostname in JDBC URL is not recognized by local DNS server.
Port number is missing or wrong in JDBC URL.
DB se...
Java Date cut off time information
...uitive way to work with dates and times. For instance you can convert trivially between (say) LocalDateTime and LocalDate objects.
e.g. (to illustrate the API)
LocalDate date = new LocalDateTime(milliseconds).toLocalDate()
Additionally it solves some thread-safety issues with date/time formatter...
What 'additional configuration' is necessary to reference a .NET 2.0 mixed mode assembly in a .NET 4
...ing possible such as the accepted answer here but I don't see how to actually achieve this.
17 Answers
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Why git can't do hard/soft resets by path?
...
Personally, I think git checkout -- <path> should be replaced with git reset --hard <path>. It makes so much more sense...
– vergenzt
Jun 26 '12 at 13:04
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What is the difference between . (dot) and $ (dollar sign)?
...ppears on the right to the input of whatever appears on the left. This usually also results in fewer parentheses, but works differently.
Going back to the same example:
putStrLn (show (1 + 1))
(1 + 1) doesn't have an input, and therefore cannot be used with the . operator.
show can take an Int...
Java compile speed vs Scala compile speed
... annoyed by is the time it takes to compile programs. It's seems like a small thing but with Java I could make small changes to my program, click the run button in netbeans, and BOOM, it's running, and over time compiling in scala seems to consume a lot of time. I hear that with many large project...
How is location accuracy measured in Android?
... that radius of the measured point in meters. Assuming that errors are normally distributed (which, as the docs say, is not necessarily true), that means that this is one standard deviation. For example, if Location.getAccuracy returns 10, then there's a 68% chance the true location of the device is...
Placing Unicode character in CSS content value [duplicate]
... content: "↓";
}
If that's not good enough, and you want to keep it all-ASCII:
nav a:hover:after {
content: "\2193";
}
The general format for a Unicode character inside a string is \000000 to \FFFFFF – a backslash followed by six hexadecimal digits. You can leave out leading 0 digits...
How do I access an access array item by index in handlebars?
...ar', attr: [ 'far', 'zar','sar ] } ] then how are you going to show all the attr for every objects of the array ?
– Partha Roy
Feb 24 '16 at 9:13
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Media Player called in state 0, error (-38,0)
...
You need to call mediaPlayer.start() in the onPrepared method by using a listener.
You are getting this error because you are calling mediaPlayer.start() before it has reached the prepared state.
Here is how you can do it :
mp.setDataSo...