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Count number of occurrences of a given substring in a string

... the following solutions: You mean a list of space separated sub-strings and want to know what is the sub-string position number among all sub-strings: s = 'sub1 sub2 sub3' s.split().index('sub2') >>> 1 You mean the char-position of the sub-string in the string: s.find('sub2') >>...
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trying to align html button at the center of the my page [duplicate]

... position: absolute; top: 50%; } There are many ways to skin a cat, and this is just one. share | improve this answer | follow | ...
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What does T&& (double ampersand) mean in C++11?

I've been looking into some of the new features of C++11 and one I've noticed is the double ampersand in declaring variables, like T&& var . ...
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When to use window.opener / window.parent / window.top

...hen opening a new window that acted as a dialog which required user input, and needed to pass information back to the main window. However this is restricted by origin policy, so you need to ensure both the content from the dialog and the opener window are loaded from the same origin. window.paren...
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Can I use a :before or :after pseudo-element on an input field?

... :after and :before are not supported in Internet Explorer 7 and under, on any elements. It's also not meant to be used on replaced elements such as form elements (inputs) and image elements. In other words it's impossible with pur...
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Java FileReader encoding issue

I tried to use java.io.FileReader to read some text files and convert them into a string, but I found the result is wrongly encoded and not readable at all. ...
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What does @media screen and (max-width: 1024px) mean in CSS?

... as opposed to e.g. an older mobile phone browser (note that the iPhone, and other smartphone browsers, do identify themselves as being in the screen category), or a screenreader — and that it’s displaying the page on-screen, rather than printing it. max-width: 1024px — the width of the browse...
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Python Unicode Encode Error

I'm reading and parsing an Amazon XML file and while the XML file shows a ' , when I try to print it I get the following error: ...
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How can I read SMS messages from the device programmatically in Android?

I want to retrieve the SMS messages from the device and display them? 11 Answers 11 ...
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How to increase code font size in IntelliJ?

... On idea 14, Go to File -> Settings -> And then enter the search phraze "zoom". The correct tick box is shown in Editor -> General section. – dimuthu Dec 30 '14 at 5:39 ...