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Java concurrency: Countdown latch vs Cyclic barrier
I was reading through the java.util.concurrent API , and found that
14 Answers
14
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Find XOR of all numbers in a given range
You are given a large range [a,b] where 'a' and 'b' can be typically between 1 and 4,000,000,000 inclusive. You have to find out the XOR of all the numbers in the given range.
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'No Transport' Error w/ jQuery ajax call in IE
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I tested this on Windows Mobile 7.
After LOTS of time spent to understand, I finally found this:
http://bugs.jquery.com/ticket/10660
The Solution is simple, just set this:
$.support.cors = true;
and Ajax cross domain requests will work!
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“Invalid signature file” when attempting to run a .jar
My java program is packaged in a jar file and makes use of an external jar library, bouncy castle . My code compiles fine, but running the jar leads to the following error:
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Get the current git hash in a Python script
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The git describe command is a good way of creating a human-presentable "version number" of the code. From the examples in the documentation:
With something like git.git current tree, I get:
[torvalds@g5 git]$ git describe parent
v1.0.4-14-g24147...
What does mvn install in maven exactly do
I just started using Maven and I was told to do mvn install in a specific directory.
7 Answers
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Error: Configuration with name 'default' not found in Android Studio
I am using the volley library to perform network operation in android. So I am trying to add this library in my project which is created in Android Studio and gradle system.
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How to disable breadcrumbs in Eclipse
...i reminds us below that you can right-click on any icon on the breadcrumb, and select the entry named "Hide Breadcrumb".
Original answer (manual way, through key mapping)
Find the file org.eclipse.help.webapp\advanced\breadcrumbs.css and replace its contents with.
.help_breadcrumbs {
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How do you properly use namespaces in C++?
...utting classes that work together to form a complete object into packages, and then reusing them later from that package. But now I'm working in C++.
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C# version of java's synchronized keyword?
...: only apply thread-safety when you know you actually are going to use it (and test it).
For the method-level stuff, there is [MethodImpl]:
[MethodImpl(MethodImplOptions.Synchronized)]
public void SomeMethod() {/* code */}
This can also be used on accessors (properties and events):
private int ...