取字符”各付價78.0萬到手價58.0萬“中的78.0方法

1. String str=“各付價78.0萬到手價58.0萬”
                   String []as =str.split("萬");
                    String a = as[0];
                    String regEx="[^0-9.]";
                    Pattern p = Pattern.compile(regEx);
                    Matcher m = p.matcher(a);*/

                   System.out.println( m.replaceAll("").trim());

2. str = str.substring(str.indexOf("各付價")+3,str.indexOf("萬"));