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What's the purpose of META-INF?
In Java, you often see a META-INF folder containing some meta files. What is the purpose of this folder and what can I put there?
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Does a method's signature in Java include its return type?
Does the method signature in a Java class/interface include its return type?
14 Answers
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Reference: What is variable scope, which variables are accessible from where and what are “undefined
What is "variable scope" in PHP? Are variables from one .php file accessible in another? Why do I sometimes get "undefined variable" errors?
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RequestDispatcher.forward() vs HttpServletResponse.sendRedirect()
...use the forward method, the request is transferred to another resource within the same server for further processing.
In the case of forward, the web container handles all processing internally and the client or browser is not involved.
When forward is called on the requestDispatcherobject, we p...
How much is the overhead of smart pointers compared to normal pointers in C++?
How much is the overhead of smart pointers compared to normal pointers in C++11? In other words, is my code going to be slower if I use smart pointers, and if so, how much slower?
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Print newline in PHP in single quotes
I try to use single quotes as much as possible and I've noticed that I can't use \n in single quotes. I know I can just enter a newline literally by pressing return, but that screws up the indentation of my code.
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Given a number, find the next higher number which has the exact same set of digits as the original n
I just bombed an interview and made pretty much zero progress on my interview question. Can anyone let me know how to do this? I tried searching online but couldn't find anything:
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UINavigationController “back button” custom text?
The "back button" of a UINavigationController by default shows the title of the last view in the stack. Is there a way to have custom text in the back button instead?
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How do I ignore all files in a folder with a Git repository in Sourcetree?
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This should be added inside each folder you want to track. The existence of this file itself will make git track the folder (by tracking this file). The * means ignore all files, and the !.gitignore means don't ignore the file itself
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How do I set the selected item in a comboBox to match my string using C#?
I have a string "test1" and my comboBox contains test1 , test2 , and test3 . How do I set the selected item to "test1"? That is, how do I match my string to one of the comboBox items?
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