难以解析双字符串

Question

Thanks for taking the time to answer my question.

I have a double value (let's say 22.35). I need to parse it into a String and get 2235. The following code is not working properly.

double totalPrice = 22.35;
DecimalFormat df = new DecimalFormat("#.##");
String[] temp = df.format(totalPrice).split(".");
String amount = temp[0] + temp[1];

I keep getting an exception ArrayIndexOutOfBounds . What is another way to do this? Thanks in advance!

Answer 1

If your values don't exceed, after multiplication by 100, MAX_INT, multiply them:

double totalPrice = 22.35;
int iPrice = (int) (totalPrice * 100);
String sPrice = "" + iPrice;

Answer 2

What about:

double totalPrice = 22.35;
DecimalFormat df = new DecimalFormat("#.##");
String price = df.format(totalPrice).replace(".", "");

Answer 3

Maybe you can do it like this: just change the regex "." to " \\."!

String[] temp = df.format(totalPrice).split("\\.");

Answer 4

This will work no matter how high a number you try to apply it to:

double num = 22.35;
String concatenate = "" + num;
String parsedNum = concatenate.replace(".", "");

Hope this helps you.