build.xml

<project name="Plant" default="compile" basedir=".">
	<!--  set global properties for this build  -->
	<property name="src" location="src"/>
	<property name="dist" location="dist"/>
	<target name="init">
		<mkdir dir="${dist}"/>
		<mkdir dir="${dist}/classes"/>
	</target>
	<target name="compile" depends="init">
		<javac includeantruntime="false" srcdir="${src}" destdir="${dist}/classes"/>
	</target>
	<target name="jar" depends="init,compile">
		<jar destfile="${dist}/${ant.project.name}.jar" basedir="${dist}/classes">
		<manifest>
			<attribute name="Main-Class" value="${ant.project.name}"/>
		</manifest>
		</jar>
	</target>
	<target name="run" depends="jar">
		<java jar="${dist}/${ant.project.name}.jar" fork="true"/>
	</target>
	<target name="clean">
		<delete dir="${dist}"/>
	</target>
</project>