Java去除数字里多余的0

 public static String getPrettyNumber(String number) {
     return BigDecimal.valueOf(Double.parseDouble(number))
             .stripTrailingZeros().toPlainString();
 }

 public static void main(String[] args) {
     String intNumber = "00012340";
     System.out.println(getPrettyNumber(intNumber));
     String doubleNumber = "00012.340";
     System.out.println(getPrettyNumber(doubleNumber));

     String eNumber = "1.2e3";
     System.out.println(getPrettyNumber(eNumber));
 }

输出 :
12340 
12.34 
1200