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What's the difference between getRequestURI and getPathInfo methods in HttpServletRequest?
I'm making a simple, very lightweight front-controller. I need to match request paths to different handlers (actions) in order to choose the correct one.
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catch exception that is thrown in different thread
One of my method ( Method1 ) spawns a new thread.
That thread execute a method ( Method2 ) and during exectution an exception is thrown.
I need to get that exception information on the calling method ( Method1 )
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Redis key naming conventions?
What are the normal naming convention for keys in redis? I've seen values separated by : but I'm not sure what the normal convention is, or why.
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Clicking the text to select corresponding radio button
I'm creating a quiz web application using PHP. Each question is comprised of a separate <label> and has 4 possible choices, using radio buttons to allow the user to select his/her answer. The current HTML for a single question looks like:
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brew update: The following untracked working tree files would be overwritten by merge:
I tried to run brew update and I get an error about my local changes would be lost if I merged. I tried committing my local changes (don't remember making any, but it's been awhile), and that made things worse.
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textarea's rows, and cols attribute in CSS
I'd like to set the textarea 's rows and cols attributes via CSS.
5 Answers
5
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Predicate in Java
I am going through the code which uses Predicate in Java. I have never used Predicate . Can someone guide me to any tutorial or conceptual explanation of Predicate and its implementation in Java?
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What's the point of having pointers in Go?
I know that pointers in Go allow mutation of a function's arguments, but wouldn't it have been simpler if they adopted just references (with appropriate const or mutable qualifiers). Now we have pointers and for some built-in types like maps and channels implicit pass by reference.
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mongoDB/mongoose: unique if not null
I was wondering if there is way to force a unique collection entry but only if entry is not null .
e
Sample schema:
4 Answ...
What is a Manifest in Scala and when do you need it?
Since Scala 2.7.2 there is something called Manifest which is a workaround for Java's type erasure. But how does Manifest work exactly and why / when do you need to use it?
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