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Difference between Static and final?
...nd static methods first.
Static variable
It is a variable which belongs to the class and not to object (instance).
Static variables are initialized only once, at the start of the execution. These variables will be initialized first, before the initialization of any instance variables.
A single c...
Rename Files and Directories (Add Prefix)
I would like to add prefix on all folders and directories.
10 Answers
10
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Is there a way to rename an Xcode 4 scheme?
...ooking all over Xcode for this, but I can't find any place that allows you to rename an existing scheme in Xcode 4. Is this even possible?
...
How to determine a user's IP address in node
...t.Socket object has a property remoteAddress, therefore you should be able to get the IP with this call:
request.connection.remoteAddress
See documentation for http and net
EDIT
As @juand points out in the comments, the correct method to get the remote IP, if the server is behind a proxy, is re...
Convert floating point number to a certain precision, and then copy to string
I have a floating point number, say 135.12345678910 . I want to concatenate that value to a string, but only want 135.123456789 . With print, I can easily do this by doing something like:
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All falsey values in JavaScript
...ll is a falsey object, with typeof as undefined. It was a Microsoft-proprietory function in IE before IE11, and was added to the HTML spec as a "willful violation of the JavaScript specification" so that sites written for IE wouldn't break on trying to access, for example, document.all.something; it...
Initializing multiple variables to the same value in Java
...Person = thirdPerson = new Person();
All the variables would be pointing to the same instance. Probably what you would need in that case is:
Person firstPerson = new Person();
Person secondPerson = new Person();
Person thirdPerson = new Person();
Or better yet use an array or a Collection.
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MySQL show status - active or total connections?
...ly growing. Is this an active number of connections or connections made in total?
8 Answers
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Linux how to copy but not overwrite? [closed]
I want to cp a directory but I do not want to overwrite any existing files even it they are older than the copied files. And I want to do it completely noninteractive as this will be a part of a Crontab Bash script. Any ideas?
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initialize a numpy array
Is there way to initialize a numpy array of a shape and add to it? I will explain what I need with a list example. If I want to create a list of objects generated in a loop, I can do:
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