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What are the benefits of Java's types erasure?
...t message with even just the excerpts mentioned thus far:
It's funny when Java users complain about type erasure, which is the only thing Java got right, while ignoring all the things it got wrong.
I get huge benefits (e.g. parametricity) and nil cost (alleged cost is a limit of imagination).
new T...
Why Maven uses JDK 1.6 but my java -version is 1.7
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add the following to your ~/.mavenrc:
export JAVA_HOME=/Library/Java/JavaVirtualMachines/{jdk-version}/Contents/Home
Second Solution:
echo export "JAVA_HOME=\$(/usr/libexec/java_home)" >> ~/.bash_profile
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Differences in auto-unboxing between Java 6 vs Java 7
I have noted a difference in auto unboxing behavior between Java SE 6 and Java SE 7. I'm wondering why that is, because I can't find any documentation of changes in this behavior between these two versions.
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Iterating over Java collections in Scala
... Apache POI API. I would like to iterate over the rows contained in the java.util.Iterator that I get from the Sheet class. I would like to use the iterator in a for each style loop, so I have been trying to convert it to a native Scala collection but will no luck.
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Android studio: new project vs new module
...odule.group="LearnCity" external.system.module.version="unspecified" type="JAVA_MODULE" version="4">
<component name="FacetManager">
<facet type="android-gradle" name="Android-Gradle">
<configuration>
<option name="GRADLE_PROJECT_PATH" value=":app" />
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What is the difference between an int and an Integer in Java and C#?
... of programmer knowing the difference between an int and an Integer in Java/C# (Object-Oriented Programming Languages).
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Scala vs. Groovy vs. Clojure [closed]
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Groovy is a dynamically typed language, whose syntax is very close to Java, with a number of syntax improvements that allow for lighter code and less boilerplate. It can run through an interpreter as well as being compiled, which makes it good for fast prototyping, scripts, and learning dynamic...
Does a method's signature in Java include its return type?
Does the method signature in a Java class/interface include its return type?
14 Answers
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How to analyze a java thread dump?
I am trying to understand more about java, especially about memory management and threads.
For this reason I have recently found interest in looking at thread dumps.
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Copying files from one directory to another in Java
I want to copy files from one directory to another (subdirectory) using Java. I have a directory, dir, with text files. I iterate over the first 20 files in dir, and want to copy them to another directory in the dir directory, which I have created right before the iteration.
In the code, I want to c...