hw5/ParseString.java

public class ParseString{
   private String str;
   public ParseString(String str){
      this.str = str;
   }
   public double sumOfAll(){
      String new_str = this.str.replaceAll(" +",",");
      String[] parts = new_str.split(",");
      double total = 0;
      for (int i = 0; i < parts.length; i ++){
         total += Double.parseDouble(parts[i]);
      }
      return total;
   }
}