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Initializing multiple variables to the same value in Java
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String one, two, three;
one = two = three = "";
This should work with immutable objects. It doesn't make any sense for mutable objects for example:
Person firstPerson, secondPerson, thirdPerson;
firstPerson = secondPerson = thirdPerson = new Person();
All the variables would be pointing ...
How do I find the location of Python module sources?
...ource by looking at themodule.__file__.
The datetime module, however, is written in C, and therefore datetime.__file__ points to a .so file (there is no datetime.__file__ on Windows), and therefore, you can't see the source.
If you download a python source tarball and extract it, the modules' code ...
How to change the pop-up position of the jQuery DatePicker control
... to appear at the end of the associated text box instead of directly below it? What tends to happen is that the text box is towards the bottom of the page and the DatePicker shifts up to account for it and totally covers the text box. If the user wants to type the date instead of pick it, they can't...
How to find index of list item in Swift?
I am trying to find an item index by searching a list . Does anybody know how to do that?
22 Answers
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Invalid argument supplied for foreach()
It often happens to me to handle data that can be either an array or a null variable and to feed some foreach with these data.
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How to find all links / pages on a website
Is it possible to find all the pages and links on ANY given website? I'd like to enter a URL and produce a directory tree of all links from that site?
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Eclipse error “ADB server didn't ACK, failed to start daemon”
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edited Jun 18 '14 at 7:10
Sameer
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How can I reverse a NSArray in Objective-C?
...hile (i < j) {
[self exchangeObjectAtIndex:i
withObjectAtIndex:j];
i++;
j--;
}
}
@end
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Servlet returns “HTTP Status 404 The requested resource (/servlet) is not available”
...lass servlet.java in my default package in src folder. In my web.xml it is mapped as /servlet .
12 Answers
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Compiler Ambiguous invocation error - anonymous method and method group with Func or Action
...s is one of the hairiest parts of the spec, so good on Jon for diving into it head first.
Second, let me say that this line:
An implicit conversion exists from a method group to a compatible delegate type
(emphasis added) is deeply misleading and unfortunate. I'll have a talk with Mads about...