build.xml in ant

Question

Can anybody help me know what these tags do in build.xml file?

1)<property file="" location="."/>
2)<property environment=""/>
3)<property name="" value=""/> 
4)<path> id="classpath.base"
5)<pathelement> location="$some.jar"/> 
6)<path> id="classpath.build"> 
7)<path> id="classpath.test">
8)<target></target>

Thank You

Answer 1

In the interest of teaching a man how to fish, here're the docs for the <property> tag and the <path> and <pathelement> tags.