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JUnit 4 Test Suites
...rent ways:
right-click and run in Eclipse as Junit test
create a runable Java Application; Main class='org.junit.runner.JUnitCore' and Args='my.package.tests.AllTests'
run from the command line:
$ java -cp build/classes/:/usr/share/java/junit4.jar:/usr/share/java/hamcrest-core.jar org.junit.runne...
Understanding generators in Python
...erator.
Normal functions return a single value using return, just like in Java. In Python, however, there is an alternative, called yield. Using yield anywhere in a function makes it a generator. Observe this code:
>>> def myGen(n):
... yield n
... yield n + 1
...
>>> g ...
Java Hashmap: How to get key from value?
... you choose to use the Commons Collections library instead of the standard Java Collections API, you can achieve this with ease.
The BidiMap interface in the Collections library is a bi-directional map, allowing you to map a key to a value (like normal maps), and also to map a value to a key, thus ...
JPanel Padding in Java
I have a formatting question for my Java swing application. It should be fairly straightforward, but I am having difficulty finding any aid (Every topic seems to be regarding removing any default padding in JPanel). The text in my various JPanels hug the sides and top, touching the colored borders...
Map to String in Java
When I do System.out.println(map) in Java, I get a nice output in stdout. How can I obtain this same string representation of a Map in a variable without meddling with standard output? Something like String mapAsString = Collections.toString(map) ?
...
Is module __file__ attribute absolute or relative?
...
98
From the documentation:
__file__ is the pathname of the file from which the module was load...
How to format a Java string with leading zero?
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You can use StringUtils or DecimalFormat for Java 1.4 and below. Check here javadevnotes.com/java-integer-to-string-with-leading-zeros
– JavaDev
Mar 5 '15 at 3:40
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普通码农和CTO之间的差距，就是这7点了 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...提高你的见识、分析能力。这里推荐几份靠谱的代码：
Java并发包，混并发界你要是没听过DougLea那你算白混了，老爷子说得上是学术、工程两届通吃。文有提笔能写论文，武能键盘码程序的全才。java.util.concurrent依旧经典，无论...
EJB's - when to use Remote and/or local interfaces?
I'm very new to Java EE and I'm trying to understand the concept of Local interfaces and Remote interfaces. I've been told that one of the big advantages of Java EE is that it is easy to scale (which I believe means you can deploy different components on different servers). Is that where Remote and ...
Java HashMap performance optimization / alternative
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Just use java.util.Arrays.hashCode(). It's simpler (no code to write and maintain by yourself), its calculation is probably faster (fewer multiplications), and the distribution of its hash codes will probably be more even.
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