Simple Function problem ???

[DaoK]

package StringManiPrg2;
//Remove all number in a String

public class StringManiPrg2
  {
public static String Daok;
    public static void main ( String Args[])
    {
    String stringer;
    stringer = Daok("Big Big Show");
    System.out.println(stringer);
  }
public static void Daok(String varStr)
  {
  // System.out.println (varStr);
  Daok ="$$$ " + varStr + " $$$";
  }
}

What I have to do to change that code to be able to use it because I got always an error.