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how to change any data type into a string in python
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x = str(something)
Examples:
>>> str(1)
'1'
>>> str(1.0)
'1.0'
>>> str([])
'[]'
>>> str({})
'{}'
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From the documentation:
Return a string containing a nicely printable representation of an object. For strings, this returns the string itself. The dif...
Difference between Mutable objects and Immutable objects [duplicate]
...Point( 0, 0 );
System.out.println( myPoint );
myPoint.setLocation( 1.0, 0.0 );
System.out.println( myPoint );
String myString = new String( "old String" );
System.out.println( myString );
myString.replaceAll( "old", "new" );
System.out.println( myString );
The output i...
Python unittests in Jenkins?
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py.test --junitxml results.xml tests.py
results.xml:
<?xml version="1.0" encoding="utf-8"?>
<testsuite errors="0" failures="1" name="pytest" skips="1" tests="2" time="0.097">
<testcase classname="tests.SimpleTest" name="test_fail" time="0.000301837921143">
<failu...
Java 理论与实践: 线程池与工作队列 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...并发实用程序，这个包应该用于 Java 开发工具箱 1.5 发行版。
结束语
线程池是组织服务器应用程序的有用工具。它在概念上十分简单，但在实现和使用一个池时，却需要注意几个问题，例如死锁、资源不足和wait() 及 notify(...
How do you Force Garbage Collection from the Shell?
...this via the free jmxterm program.
Fire it up like so:
java -jar jmxterm-1.0-alpha-4-uber.jar
From there, you can connect to a host and trigger GC:
$>open host:jmxport
#Connection to host:jmxport is opened
$>bean java.lang:type=Memory
#bean is set to java.lang:type=Memory
$>run gc
#cal...
getting the screen density programmatically in android?
...sources().getDisplayMetrics().density;
This will give you:
0.75 - ldpi
1.0 - mdpi
1.5 - hdpi
2.0 - xhdpi
3.0 - xxhdpi
4.0 - xxxhdpi
ref: density
ref 2
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What is the difference between '/' and '//' when used for division?
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// implements "floor division", regardless of your type. So
1.0/2.0 will give 0.5, but both 1/2, 1//2 and 1.0//2.0 will give 0.
See https://docs.python.org/whatsnew/2.2.html#pep-238-changing-the-division-operator for details
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Changing all files' extensions in a folder with one command on Windows
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NOTE: not for Windows
Using ren-1.0 the correct form is:
"ren *.*" "#2.jpg"
From man ren
The replacement pattern is another filename with embedded wildcard
indexes, each
of which consists of the character # followed by a digit from 1 to 9...
How to style UITextview to like Rounded Rect text field?
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iOS 7 - borderWidth of 1.0 and alpha of .2 works with the default style.
– Kalel Wade
May 21 '14 at 17:32
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jQuery Mobile: document ready vs. page events
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<meta name="viewport" content="widdiv=device-widdiv, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black" />
<title>
&l...