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What is the difference between “text” and new String(“text”)?
...ferentially distinct instance of a String object; String s = "text"; may reuse an instance from the string constant pool if one is available.
You very rarely would ever want to use the new String(anotherString) constructor. From the API:
String(String original) : Initializes a newly created Str...
How to search and replace globally, starting from the cursor position and wrapping around the end of
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1. It is not hard to achieve the behavior using a two-step substitution:
:,$s/BEFORE/AFTER/gc|1,''-&&
First, the substitution command is run for each line starting from
the current one until the end of file:
,$s/BEFORE/AFTER/gc
Then, that :substitute comman...
Can someone give an example of cosine similarity, in a very simple, graphical way?
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Here are two very short texts to compare:
Julie loves me more than Linda loves me
Jane likes me more than Julie loves me
We want to know how similar these texts are, purely in terms of word counts (and ignoring word order). We begin by making a list of the words fro...
What is getattr() exactly and how do I use it?
I've recently read about the getattr() function . The problem is that I still can't grasp the idea of its usage. The only thing I understand about getattr() is that getattr(li, "pop") is the same as calling li.pop .
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How do I view 'git diff' output with my preferred diff tool/ viewer?
When I type git diff , I want to view the output with my visual diff tool of choice (SourceGear "diffmerge" on Windows). How do I configure git to do this?
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How to link to apps on the app store
I am creating a free version of my iPhone game. I want to have a button inside the free version that takes people to the paid version in the app store. If I use a standard link
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OOP vs Functional Programming vs Procedural [closed]
... the differences between these programming paradigms, and are they better suited to particular problems or do any use-cases favour one over the others?
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Simplest way to serve static data from outside the application server in a Java web application
I have a Java web application running on Tomcat. I want to load static images that will be shown both on the Web UI and in PDF files generated by the application. Also new images will be added and saved by uploading via the Web UI.
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Join vs. sub-query
I am an old-school MySQL user and have always preferred JOIN over sub-query. But nowadays everyone uses sub-query, and I hate it; I don't know why.
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ios Upload Image and Text using HTTP POST
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Here's code from my app to post an image to our web server:
// Dictionary that holds post parameters. You can set your post parameters that your server accepts or programmed to accept.
NSMutableDictionary* _params = [[NSMutableDictionary alloc] init];
[_params setObjec...