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Getting random numbers in Java [duplicate]
...it
becomes 0.0 to 49.999... when you add 1, it becomes 1.0 to 50.999..., now when you truncate to int, you get 1 to 50. (thanks to @rup in comments). leepoint's awesome write-up on both the approaches.
2. Using Random class in Java.
Random rand = new Random();
int value = rand.nextInt(50);
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AWS ssh access 'Permission denied (publickey)' issue [closed]
...
Now it's:
ssh -v -i ec2-keypair.pem ec2-user@[yourdnsaddress]
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follo...
Setting DIV width and height in JavaScript
...e {
display:none;
}
.narrow {
display:block;
width:100px;
}
Now, I can easily just add and remove a class attribute, one single property, instead of calling multiple properties. In addition, when your Web designer wants to change the definition of what it means to be wide, he or she d...
How to initialize a JavaScript Date to a particular time zone
...ne as a string and I want to convert this to the local time. But, I don't know how to set the timezone in the Date object.
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How do I load a file into the python console?
...orted are present. when you type 'python', python terminal will be opened. Now you can use import script_name Note: no .py extension to be used while importing. How can I open a cmd window in a specific location?
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From inside of a Docker container, how do I connect to the localhost of the machine?
...ker host has the IP address 172.17.42.1 on the docker0 network interface.
Now start a new container and get a shell on it: docker run --rm -it ubuntu:trusty bash and within the container type ip addr show eth0 to discover how its main network interface is set up:
root@e77f6a1b3740:/# ip addr show ...
Why does Twitter Bootstrap Use Pixels for Font Size?
...ing units on line-height is generally discouraged, but provides immediate
knowledge of what the computed value is. We'll probably try to steer
away from this in the future.
In the future, we'll likely use ems for type sizing, perhaps rems even, but not for anything else. This is also debatable on fo...
C++ performance challenge: integer to std::string conversion
...e important thing to do is to minimize the use of std::string. (Ironic, I know.) In Visual Studio, for example, most calls to methods of std::string are not inlined, even if you specify /Ob2 in compiler options. So even something as trivial as a call to std::string::clear(), which you might expect t...
Close file without quitting VIM application?
...artin, to completely delete the buffer, use :bw
– sebnow
Dec 2 '10 at 11:14
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Parse a .py file, read the AST, modify it, then write back the modified source code
...asy, without writing new .py files! If you expand your question to let us know what you actually want to accomplish, new .py files will probably not be involved in the answer at all; I have seen hundreds of Python projects doing hundreds of real-world things, and not a single one of them needed to e...