public class Test {
    public static void main(String A[]) {
        String parameter;
        System.out.println("This program was executed with "+A.length+" arguments.");
        if (A.length>0) {
            parameter=A[0];
            System.out.println("They are:");
            for (int i=0; i<A.length; i++)
                System.out.println(A[i]);
        } else {
            System.out.println("No arguments provided, we will assume default values and go on.");
            parameter="xyz";
        }
    }
}