Parse String into Number

Question

I have a list which will store Number objects. The list will be populated by parsing a list of strings, where each string may represent any subclass of Number.

How d

Answer 1

You can use the java.text.NumberFormat class. This class has a parse() method which parses given string and returns the appropriate Number objects.

        public static void main(String args[]){
            List myStrings = new ArrayList(); 
            myStrings.add("11");
            myStrings.add("102.23");
            myStrings.add("22.34");

            NumberFormat nf = NumberFormat.getInstance();
            for( String text : myStrings){
               try {
                    System.out.println( nf.parse(text).getClass().getName() );
               } catch (ParseException e) {
                    e.printStackTrace();
               }
           }
        }