把其中的数字转换为金额格式

/* * To change this template, choose Tools | Templates * and open the template in the editor. */package javaapplication1;import java.text.NumberFormat;import java.util.regex.Matcher;import java.util.regex.Pattern;/** * * @author lenovo */public class NumberStringMoney {    public static void main(String args[]) {                //把其中的数字转换为金额格式        Pattern p = Pattern.compile("\\d+");        Matcher m = p.matcher("此合同金额为：200000000l");        NumberFormat nf = NumberFormat.getInstance();        StringBuffer sb = new StringBuffer();        while (m.find()) {            String g = m.group();            System.out.println(g);            m.appendReplacement(sb, nf.format(Double.parseDouble(g)));        }        String result = sb.toString();        System.out.println("result:" + result);                //单纯数字转换为金额格式        nf = NumberFormat.getInstance();        String str1 = nf.format(200000000l);        System.out.println(str1);    }}

/* * To change this template, choose Tools | Templates * and open the template in the editor. */package javaapplication1;import java.util.regex.Matcher;import java.util.regex.Pattern;/** * 把其中的数字转换了金额格式 * @author lenovo */public class Example {    private static final String REGEX = "\\d+";      public static void main(String[] args) {             String input = "dog dog 1342.22 dog doggie 2321 dogg";        Pattern p = Pattern.compile(REGEX);            Matcher m = p.matcher(input); // get a matcher object             int end = 0;     String result = "";            while (m.find()) {                    result = result + input.substring(end, m.start());             result = result + addCommas(input.substring( m.start(), m.end()));             end = m.end();             }     System.out.println(result);     }          private static String addCommas(String s) {             char[] c = s.toCharArray();             String result = "";            for (int i = 0; i < s.length(); i++) {                     if (s.length() % 3 == i % 3)                             result += ",";                      result += c[i];             }             return result;     } }