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Why does Java's hashCode() in String use 31 as a multiplier?
...
It's not a great hash algorithm, but it's good enough and better than the 1.0 code (and very much better than the 1.0 spec!).
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Deep Learning（深度学习）学习笔记整理系列之（三） - 大数据 & AI - 清泛...
...理系列zouxy09@qq.comhttp: blog.csdn.net zouxy09作者：Zouxyversion 1.0 2013-04-08原文网址：h...Deep Learning（深度学习）学习笔记整理系列
zouxy09@qq.com
http://blog.csdn.net/zouxy09
作者：Zouxy
version 1.0 2013-04-08
原文网址：http://blog.csdn.net/zouxy09/arti...
What does in XML mean?
...he document in a browser, while the CDATA section will:
<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lan...
How does one generate a random number in Apple's Swift language?
...value in the range of possibilities? So lets say I do 0.0 as the lower and 1.0 as the upper. With this logic it will give me 0.0 up to 0.99999999. But instead I'd like to include the 1.0 as a possibility. How can I achieve this?
– MobileMon
Oct 19 '16 at 18:01
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How do I concatenate or merge arrays in Swift?
...enate the arrays with +, building a new array
let c = a + b
print(c) // [1.0, 2.0, 3.0, 4.0, 5.0, 6.0]
or append one array to the other with += (or append):
a += b
// Or:
a.append(contentsOf: b) // Swift 3
a.appendContentsOf(b) // Swift 2
a.extend(b) // Swift 1.2
print(a) // ...
Sending “User-agent” using Requests library in Python
...t requests
url = 'SOME URL'
headers = {
'User-Agent': 'My User Agent 1.0',
'From': 'youremail@domain.com' # This is another valid field
}
response = requests.get(url, headers=headers)
If you're using requests v2.12.x and older
Older versions of requests clobbered default headers, so y...
iPhone: How to switch tabs with an animation?
... animations:^{
toView.alpha = 1.0;
}
completion:^(BOOL finished) {
toView.alpha = 1.0;
[fromView removeFromSuperview];
[transitionContext ...
Is there a way to change the spacing between legend items in ggplot2?
... = 14) +
theme(legend.position = 'top',
legend.spacing.x = unit(1.0, 'cm'))
Note: If you only want to expand the spacing to the right of the legend text, use stringr::str_pad()
Example: Move the legend key labels to the bottom and increase vertical spacing
ggplot(mtcars, aes(factor(...
Gradle alternate to mvn install
...
sdk/build.gradle:
apply plugin: "maven"
group = "foo"
version = "1.0"
example/build.gradle:
repositories {
mavenLocal()
}
dependencies {
compile "foo:sdk:1.0"
}
$sdk> gradle install
$example> gradle build
...
The difference between the Runnable and Callable interfaces in Java
...not do everything that Callable does!
Runnable has been around since Java 1.0, but Callable was only introduced in Java 1.5 ... to handle use-cases that Runnable does not support. In theory, the Java team could have changed the signature of the Runnable.run() method, but this would have broken bin...