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Must JDBC Resultsets and Statements be closed separately although the Connection is closed afterward
...
I'm now using Oracle with Java. Here my point of view :
You should close ResultSet and Statement explicitly because Oracle has problems previously with keeping the cursors open even after closing the connection. If you don't clo...
How to allow only numeric (0-9) in HTML inputbox using jQuery?
...else {
this.value = "";
}
});
};
}(jQuery));
You can now use the inputFilter plugin to install an input filter:
$(document).ready(function() {
$("#myTextBox").inputFilter(function(value) {
return /^\d*$/.test(value); // Allow digits only, using a RegExp
});
});
Se...
How do I get the difference between two Dates in JavaScript?
...g(Math.floor(((b - a) % msDay) / msMinute) + ' full minutes between');
Now some pitfalls. Try this:
console.log(a - 10);
console.log(a + 10);
So if you have risk of adding a number and Date, convert Date to number directly.
console.log(a.getTime() - 10);
console.log(a.getTime() + 10);
My f...
How to start a background process in Python?
...when posted in 2009. Using the subprocess module shown in other answers is now recommended in the docs
(Note that the subprocess module provides more powerful facilities for spawning new processes and retrieving their results; using that module is preferable to using these functions.)
If you...
Maven build failed: “Unable to locate the Javac Compiler in: jre or jdk issue”
... on the web, it looks like the Maven uses JAVA_HOME, but the Maven Plugin knows nothing about JAVA_HOME and instead defaults to the VM used to start Eclipse.
– jnosek
Jul 14 '11 at 15:18
...
Converting string to numeric [duplicate]
... even after deleting the text, you still have a factor in your dataframe.
Now regarding the conversion, there's a more optimal way to do so. So I put it here as a reference :
> x <- factor(sample(4:8,10,replace=T))
> x
[1] 6 4 8 6 7 6 8 5 8 4
Levels: 4 5 6 7 8
> as.numeric(levels(x))[...
How to format code in Xcode? [duplicate]
...ark I had that said how to do it, and, the technique is probably different now.
– Josh
Jan 12 '12 at 20:49
15
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How to use IntelliJ IDEA to find all unused code?
...aration under Declaration redundancy group).
Using IntelliJ 11 CE you can now "Analyze | Run Inspection by Name ... | Unused declaration"
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follo...
align text center with android
I know it sounds easy. I need to put a text in center, but when the text is too long it needs to go below, but still align in the center of my xml.
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How do I get epoch time in C#? [duplicate]
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TimeSpan t = DateTime.UtcNow - new DateTime(1970, 1, 1);
int secondsSinceEpoch = (int)t.TotalSeconds;
Console.WriteLine(secondsSinceEpoch);
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