Syntax questions
Id like to know what these syntaxes mean:
javadoc -d doc Hello.java
jar -cf hello.jar Hello.class
java -cp hello.jar Hello
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javadoc -d doc Hello.java means create the Javadoc HTML documentation of Hello.java and put it in a doc directory
jar -cf hello.jar Hello.class means "create a JAR file named hello.jar with the Hello class"
java -cp hello.jar Hello means "Run a Java application where you can load classes from hello.jar and run the Hello class"what is a maven archetype ?
a template for a Maven project
If you run
mvn archetype:generate, Maven will create a new Maven project using an archetypeso using a template
pretty much yes
groupId: bigsnake
artifactId: bigger
version: snapshotname
package: bigsnake
what are tehse ?
these are configurations used by the template
the group id is pretty much specifying what/who the project belongs to
do they mean anything important ?
the artifact ID is the project id (pretty much the project name) which should be unique in combination with the group id
the version is the version of the project
and the package is which package you want to use
oh okay
and once i do mvn package
to compile into a jar
how do i execute a certain class from it
if i have specified those values there
groupId: bigsnake
artifactId: bigger
version: snapshotname
package: bigsnake
the group id ?
Do you have any dependencies?
?
some yea
why would that mateR ?
The JAR generated by
mvn package doesn't include dependencies
so if you run it, you would also need to tell it where he dependencies are
the easiest way is to run mvn dependency:copy-dependencies. That will copy all dependencies to a subfolder inside targetnice
ty
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