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How can I randomize the lines in a file using standard tools on Red Hat Linux?
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I'm usually a Perl fan, but came across this ruby example which has the benefit of being shorter: ruby -e 'puts STDIN.readlines.shuffle'. It would need testing on big inputs to see if the speed is comparable. (also works on OS X)
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How can I select every other line with multiple cursors in Sublime Text?
...t already enabled, enable them: Alt+R
Type in the expression .*\n.*\n
Find all: Alt+Enter
Press left arrow to get rid of the selections, leaving just the cursors: ←
You now have a cursor at the start of every odd-numbered line. If you wanted even-numbered lines, press down: ↓
Depending on the fi...
How do I plot in real-time in a while loop using matplotlib?
...of the code in question (requires at least version Matplotlib 1.1.0 from 2011-11-14):
import numpy as np
import matplotlib.pyplot as plt
plt.axis([0, 10, 0, 1])
for i in range(10):
y = np.random.random()
plt.scatter(i, y)
plt.pause(0.05)
plt.show()
Note some of the changes:
Call...
How to select .NET 4.5.2 as a target framework in Visual Studio
I have installed .NET Framework 4.5.2 on Windows 8.1. But in Visual Studio 2013 I do not see the .NET Framework 4.5.2 option (see screenshot). How do I target my project for .NET 4.5.2?
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Android SDK installation doesn't find JDK
I'm trying to install the Android SDK on my Windows 7 x64 System.
45 Answers
45
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What is an SSTable?
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Is it generally immutable?
– Dean J
Jul 1 '15 at 21:40
1
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微软VS苹果 桌面操作系统的终极一战 - 创意 - 清泛网 - 专注C/C++及内核技术
...选择Windows系统，在2015年的第二季度，全球PC出货量重挫11.8%，PC市场的萎靡却愈发凸显了苹果产品的坚挺，Mac全球出货量16.1%的增长，就是无声的打脸。
虽然高调宣布升级Windows 10不用掏钱，可是微软的免费来的却并不干脆。首...
Recommended way to get hostname in Java
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Strictly speaking - you have no choice but calling either hostname(1) or - on Unix gethostname(2). This is the name of your computer. Any attempt to determine the hostname by an IP address like this
InetAddress.getLocalHost().getHostName()
is bound to fail in some cir...
Which access modifiers are implied when not specified?
For all of the different concepts that support access modifiers, such as fields, properties, methods and classes, which access modifiers are implied if not specified?
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How to handle :java.util.concurrent.TimeoutException: android.os.BinderProxy.finalize() timed out af
...ications, and discuss it with other developers who encountered it - and we all got to the same point: this issue cannot be avoided, only minimized.
I took a closer look at the default implementation of the Android Garbage collector code, to understand better why this exception is thrown and on what...