JAVA練習---人民幣小寫轉大寫

package 測試包;

import java.util.ArrayList;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class 人民幣數字轉大寫 {
    public static boolean isXiaoShu(String x) {
        boolean flag = false;
        Pattern p = Pattern.compile("\\.");
        Matcher m = p.matcher(x);
        while (m.find()) {
            flag = true;
        }
        return flag;
    }

    // 分解整數和小數
    public static ArrayList<String> fenJieZhengshu(String x) {
        ArrayList<String> ret = new ArrayList<String>();
        ArrayList<String> al = new ArrayList<String>();
        Pattern p = Pattern.compile("[0-9]+");
        Matcher m = p.matcher(x);
        while (m.find()) {
            al.add(m.group());
        }
        int zhengshuweishu = al.get(0).length();
        if (zhengshuweishu >= 0 && zhengshuweishu <= 4) {
            ret.add(al.get(0));
        }
        if (zhengshuweishu >= 5 && zhengshuweishu <= 8) {
            ret.add(al.get(0).substring(0, zhengshuweishu - 4));
            ret.add(al.get(0).substring(zhengshuweishu - 4, zhengshuweishu));
        }
        if (zhengshuweishu >= 9 && zhengshuweishu <= 12) {
            ret.add(al.get(0).substring(0, zhengshuweishu - 8));
            ret.add(al.get(0).substring(zhengshuweishu - 8, zhengshuweishu - 4));
            ret.add(al.get(0).substring(zhengshuweishu - 4, zhengshuweishu));
        }
        return ret;
    }

    public static String fenJieXiaoshu(String x) {
        String xiaoshu = "";
        ArrayList<String> al = new ArrayList<String>();
        Pattern p = Pattern.compile("[0-9]+");
        Matcher m = p.matcher(x);
        while (m.find()) {
            al.add(m.group());
        }
        xiaoshu = al.get(1);
        return xiaoshu;
    }

    // 讀千，讀小數
    public static String readQian(String x) {
        String ret = "";
        String daxie = "零一二三四五六七八九十";
        String danwei = "個十百千萬億";
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < x.length(); i++) {
            sb.append(daxie.charAt(Integer.parseInt(x.charAt(i) + "")));
            sb.append(danwei.charAt(x.length() - i - 1));
        }
        ret = sb.toString();
        return ret;
    }

    public static String readxiaoshu(String x) {
        String ret = "";
        String daxie = "零一二三四五六七八九十";
        ret = daxie.charAt(Integer.parseInt(x.charAt(0) + "")) + "角";
        ret = ret + daxie.charAt(Integer.parseInt(x.charAt(1) + "")) + "分";
        return ret;
    }

    // 統一讀法
    public static String readMoney(String x) {
        String ret = "";

        StringBuilder sb_temp = new StringBuilder();
        ArrayList<String> zheng = fenJieZhengshu(x);
        if (zheng.size() == 1) {
            sb_temp.append(readQian(zheng.get(0)));
        }
        if (zheng.size() == 2) {
            sb_temp.append(readQian(zheng.get(0)));
            sb_temp.append("萬");
            sb_temp.append(readQian(zheng.get(1)));
        }
        if (zheng.size() == 3) {
            sb_temp.append(readQian(zheng.get(0)));
            sb_temp.append("億");
            sb_temp.append(readQian(zheng.get(1)));
            sb_temp.append("萬");
            sb_temp.append(readQian(zheng.get(2)));
        }

        String xiao = "";
        if (isXiaoShu(x) == true) {
            xiao = readxiaoshu(fenJieXiaoshu(x));
            sb_temp.append("圓");
            sb_temp.append(xiao);
            ret = "人民幣" + sb_temp.toString();
        }
        if (isXiaoShu(x) == false) {
            ret = "人民幣" + sb_temp.toString() + "圓整";
        }

        ret = xiuGai(ret);

        return ret;
    }

    // 修改
    public static String xiuGai(String x) {
        String ret = x;
        for (int i = 0; i < 2; i++) {
            ret = ret.replaceAll("零角零分", "整");
            ret = ret.replaceAll("零角", "零");
            ret = ret.replaceAll("零分", "");
            ret = ret.replaceAll("零千零百零十零個億", "");
            ret = ret.replaceAll("零千零百零十零個萬", "零");
            ret = ret.replaceAll("零千零百零十零個", "");
            ret = ret.replaceAll("零百零十零個", "");
            ret = ret.replaceAll("零十零個", "");
            ret = ret.replaceAll("零個圓", "");
            ret = ret.replaceAll("零個", "");
            ret = ret.replaceAll("零千零百零十", "零");
            ret = ret.replaceAll("零千零百", "零");
            ret = ret.replaceAll("零萬", "萬");
            ret = ret.replaceAll("零千", "零");
            ret = ret.replaceAll("零百", "零");
            ret = ret.replaceAll("零十", "零");
            ret = ret.replaceAll("零零", "零");
            ret = ret.replaceAll("個", "");
            ret = ret.replaceAll("人民幣零", "人民幣");
            ret = ret.replaceAll("人民幣億", "人民幣");
            ret = ret.replaceAll("", "");
        }
        return ret;
    }

    public static void main(String[] args) {
        System.out.println(readMoney("0.78"));
        System.out.println(readMoney("10000.00"));
        System.out.println(readMoney("100110000089.00"));
        System.out.println(readMoney("100110000089.00"));
        System.out.println(readMoney("000000089.00"));
        System.out.println(readMoney("100110000089.00"));
        System.out.println(readMoney("1000000009.10"));
    }
}

人民幣七角八分
人民幣一萬圓整
人民幣一千零一億一千萬零八十九圓整
人民幣一千零一億一千萬零八十九圓整
人民幣八十九圓整
人民幣一千零一億一千萬零八十九圓整
人民幣一十億零九圓一角