Middle Character for a command line parameter

[xgiovio]

public class test {

    public static void main (String [] input_data){

        String dato =  input_data[0];

        System.out.print( (dato).charAt( (dato.length()) /2  )  );

        //Alternative version
        //System.out.print( (input_data[0]).charAt( (input_data[0].length()) /2  )  );


    }
}