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How to extract a floating number from a string [duplicate]

I have a number of strings similar to Current Level: 13.4 db. and I would like to extract just the floating point number. I say floating and not decimal as it's sometimes whole. Can RegEx do this or is there a better way? ...
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Vagrant stuck connection timeout retrying

...g perfectly fine last night. I've just turned the PC on, hit vagrant up , and this is what I get: 47 Answers ...
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What is the difference between gravity and layout_gravity in Android?

I know we can set the following values to the android:gravity and android:layout_gravity properties: 20 Answers ...
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Where to use EJB 3.1 and CDI?

I am making a Java EE based product in which I'm using GlassFish 3 and EJB 3.1. 2 Answers ...
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Solving a “communications link failure” with JDBC and MySQL [duplicate]

... in different web sites, but non of them worked. Finally I changed my code and found out what was the problem. I'll try to tell you about different approaches and sum them up here. While I was seeking the internet to find the solution for this error, I figured out that there are many solutions that...
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How to use Regular Expressions (Regex) in Microsoft Excel both in-cell and loops

How can I use regular expressions in Excel and take advantage of Excel's powerful grid-like setup for data manipulation? 9 ...
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C++11 introduced a standardized memory model. What does it mean? And how is it going to affect C++ p

C++11 introduced a standardized memory model, but what exactly does that mean? And how is it going to affect C++ programming? ...
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Can I browse other people's (Apple) bug reports? [closed]

...efore posting, but I can't see any way to do this. I can only see my bugs, and post new bugs, but I can't see any way to browse or search the whole bug system. ...
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How can I do a line break (line continuation) in Python?

...g line of code that I want to break up among multiple lines. What do I use and what is the syntax? 10 Answers ...
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What is the difference between linear regression and logistic regression?

...ut as probabilities but it's a mistake because the output can be negative, and greater than 1 whereas probability can not. As regression might actually produce probabilities that could be less than 0, or even bigger than 1, logistic regression was introduced. Source: http://gerardnico.com/wiki/dat...