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Eclipse - no Java (JRE) / (JDK) … no virtual machine
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Eclipse will by default try to launch with the default "java.exe" (the first one referenced by your PATH)
Three things to remember:
"Installing" a JRE or a JDK can be as simple as unzipping or copying it from another computer: there is...
Python != operation vs “is not”
... a singleton in Python - there is only ever one instance of it in memory.
By comparing identity, this can be performed very quickly. Python checks whether the object you're referring to has the same memory address as the global None object - a very, very fast comparison of two numbers.
By comparin...
Why are preprocessor macros evil and what are the alternatives?
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The if else problems can be solved by wrapping the macro body inside do { ... } while(0). This behaves as one would expect with respect to if and for and other potentially-risky control-flow issues. But yes, a real function is usually a better solution. #de...
NUnit vs. Visual Studio 2008's test projects for unit testing [closed]
...ly when running
single tests.
According to Kjetil Klaussen, this is caused by the Visual Studio testrunner. Running MSTest tests in TestDriven.Net makes MSTest performance comparable to NUnit.
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Deserialize from string instead TextReader
...uld remove 'this', but then the method is not an extension method anymore. By making the method an extension method, this is possible: string s = "blah!"; string xml = s.XmlSerializeToString(); note: be sure to reference the namespace of the static class that holds the extension methods in your us...
Can I Set “android:layout_below” at Runtime Programmatically?
...out.setLayoutParams(params);
First, the code creates a new layout params by specifying the height and width. The addRule method adds the equivalent of the xml properly android:layout_below. Then you just call View#setLayoutParams on the view you want to have those params.
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How to crop an image using PIL?
I want to crop image in the way by removing first 30 rows and last 30 rows from the given image. I have searched but did not get the exact solution. Does somebody have some suggestions?
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Unknown file type MIME?
...ient that "you don't want to display it just now, but go on and save these bytes to file instead". This makes web clients offer saving file. Option 1 == Don't know anything about this file. Option 2 == File contents can't be described using mime or it should only be saved to disk. In practice either...
How can I open Java .class files in a human-readable way?
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If you don't mind reading bytecode, javap should work fine. It's part of the standard JDK installation.
Usage: javap <options> <classes>...
where options include:
-c Disassemble the code
-classpath <pathli...
MySQL Removing Some Foreign keys
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As explained here, seems the foreign key constraint has to be dropped by constraint name and not the index name. The syntax is:
alter table footable drop foreign key fooconstraint
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