String input="180.00";
Pattern p=Pattern.compile("^\\d+\\.\\d{2}$");
Matcher m=p.matcher(input);
System.out.println(m.matches());//输出true
public static boolean isNumber(String money) {
Pattern pattern = Pattern.compile("^(([1-9]{1}\\d*)|([0]{1}))(\\.(\\d){0,2})?$");
Matcher match = pattern.matcher(money);
return match.matches();
}
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