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What is an initialization block?
...block. What is the use of initialization block? Is it necessary that every java program must have it?
10 Answers
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What is javax.inject.Named annotation supposed to be used for?
I am trying to understand the javax.inject package and I am not clear what the javax.inject.Named annotation is supposed to be used for. The Javadoc does not explain the the idea behind it.
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How to get month name from Calendar
...n't return correct values for all Locale's anymore: oracle.com/technetwork/java/javase/…
– ahaaman
Apr 10 '14 at 12:32
...
How to iterate over a JSONObject?
... Although this example isn't really understood as Iterating in Java, it works quite well! Thanks.
– Tim Visée
Dec 31 '15 at 1:27
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How does lombok work?
I met lombok today.
I'm very anxious to know how it works.
A Java Geek Article gives some clues but it's not perfectly clear to me:
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How to stop Eclipse formatter from placing all enums on one line
...sensible formatting for me in Eclipse Juno:
Window > Preferences > Java > Code Style > Formatter
Click Edit
Select the Line Wrapping tab
Select the enum declaration treenode
Set Line wrapping policy to Wrap all elements, every element on a new line (...) so it now says 3 of 3 in the pa...
How to manually install an artifact in Maven 2?
...and the version for your artifact:
mvn install:install-file \
-DgroupId=javax.transaction \
-DartifactId=jta \
-Dpackaging=jar \
-Dversion=1.0.1B \
-Dfile=jta-1.0.1B.jar \
-DgeneratePom=true
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How to add -Xlint:unchecked to my Android Gradle based project?
...adle)
allprojects {
gradle.projectsEvaluated {
tasks.withType(JavaCompile) {
options.compilerArgs << "-Xlint:unchecked" << "-Xlint:deprecation"
}
}
}
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How can I get a list of build targets in Ant?
...just invoking ant, create a target like <target name="help"> <java classname="org.apache.tools.ant.Main"> <arg value="-projecthelp" /> <arg value="-buildfile" /> <arg value="${ant.file}" /> </java> </target> and make "help" th...
What is the difference between Reader and InputStream?
...
Background of InputStream & Reader:
In the early days of java, the only way to perform console input was to use a byte stream(InputStream and OutputStream).
Use cases:
Today, using a byte stream to read console stream is also acceptable. However, for commercial applications, the pr...