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Scala best way of turning a Collection into a Map-by-key?
...ements, this Scala code is about 20 times slower than the straight-forward Java approach (create HashMap with appropriate size, loop over list, put elements into map). For 5,000 elements, Scala ist about 8 times slower. The loop approach written in Scala is roughly 3 times faster than the toMap vari...
'\r': command not found - .bashrc / .bash_profile [duplicate]
I have windows, using Cygwin, trying to set JAVA_HOME permanently through my .bashrc file.
19 Answers
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How to convert a string Date to long millseconds
...tdated classes SimpleDateFormat and Date is a bit more of a mystery to me. java.time, the modern Java date and time API also known as JSR-310, is so much nicer to work with. You can use it on Android through the ThreeTenABP, see this question: How to use ThreeTenABP in Android Project.
For most pur...
Start/Stop and Restart Jenkins service on Windows
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To stop Jenkins
Please avoid shutting down the Java process or the Windows service. These are not usual commands. Use those only if your Jenkins is causing problems.
Use Jenkins' way to stop that protects from data loss.
http://[jenkins-server]/[command]
where [comma...
CSV API for Java [closed]
... answered Sep 19 '08 at 11:58
javajava
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Classpath including JAR within a JAR
Is it possible to specify a Java classpath that includes a JAR file contained within another JAR file?
13 Answers
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How to handle static content in Spring MVC?
...re that looks like the following:
src/
springmvc/
web/
MyController.java
WebContent/
resources/
img/
image.jpg
WEB-INF/
jsp/
index.jsp
web.xml
springmvc-servlet.xml
The contents of the files should look like:
src/springmvc/web/HelloWorldController.java:
packag...
Integer.toString(int i) vs String.valueOf(int i)
...ng.format("%d",i); to read more please visit this web site docs.oracle.com/javase/6/docs/api/java/util/Formatter.html
– Damian Leszczyński - Vash
Sep 24 '13 at 7:38
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What is MOJO in Maven?
...plugin-developers/index.html:
What is a Mojo? A mojo is a Maven plain Old Java Object. Each mojo is an executable goal in Maven, and a plugin is a distribution of one or more related mojos.
In short, a mojo is a maven goal, to extend functionality not already found in maven.
...
Constructors vs Factory Methods [closed]
...
You need to read (if you have access to) Effective Java 2 Item 1: Consider static factory methods instead of constructors.
Static factory methods advantages:
They have names.
They are not required to create a new object each time they are invoked.
They can return an object...