pass line arguments to main from ant

Question

My question is How can I catch the arguments in the terminal using ant to run the main with these parameters, example:

    ant 1 2 3 4 5
    public static void main(String[] args)
    {
      int[] meta = {0,0,0,0,0};
      for(int i=1; i < 6; i++)
      {
        meta[i-1] = Integer.parseInt(args[i]);
      }
    }

How can i do this, somebody help me pls C:? Here my build.xml

<project name="Tarea2LP" basedir="." default="main">

<property name="src.dir"     value="src"/>
<property name="classes.dir" value="classes"/>
<property name="jar.dir"     value="jar"/>
<property name="main-class"  value="Board"/>

<target name="clean">
    <delete dir="${classes.dir}"/>
    <delete dir="${jar.dir}"/>
</target>

<target name="compile">
    <mkdir dir="${classes.dir}"/>
    <javac srcdir="${src.dir}" destdir="${classes.dir}"/>
</target>

<target name="jar" depends="compile">
    <mkdir dir="${jar.dir}"/>
    <jar destfile="${jar.dir}/${ant.project.name}.jar" basedir="${classes.dir}">
        <manifest>
            <attribute name="Main-Class" value="${main-class}"/>
        </manifest>
    </jar>
</target>

<target name="run" depends="jar">

    <java jar="${jar.dir}/${ant.project.name}.jar" fork="true"/>
</target>

<target name="main" depends="run"/>

</project>

Answer 1

If the number of arguments is known you can use the -D option to pass in the argument and then in your "run" task target use 'arg' to pass it to jar file like

<target name="run" depends="jar">

    <java jar="${jar.dir}/${ant.project.name}.jar" fork="true">
        <arg value="${arg1}"/>
        <arg value="${arg2}"/>
        <arg value="${arg3}"/>
        <arg value="${arg4}"/>
        <arg value="${arg5}"/>
    </java>
</target>

and you should invoke your ant file as

ant -Darg1=1 -Darg2=2 -Darg3=3 -Darg4=4 -Darg5=5