将小写人民币转换成大写

将小写人民币转换成大写

public class MoneyUtil {public static String toChinese(String str) {/** 大写数字 */String[] NUMBERS = { "零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖" };/** 整数部分的单位 */String[] IUNIT = { "元", "拾", "佰", "仟", "万", "拾", "佰", "仟", "亿", "拾","佰", "仟", "万", "拾", "佰", "仟" };/** 小数部分的单位 */String[] DUNIT = { "角", "分", "厘" };str = str.replaceAll(",", "");// 去掉","String integerStr;// 整数部分数字String decimalStr;// 小数部分数字// 初始化：分离整数部分和小数部分if (str.indexOf(".") > 0) {integerStr = str.substring(0, str.indexOf("."));decimalStr = str.substring(str.indexOf(".") + 1);} else if (str.indexOf(".") == 0) {integerStr = "";decimalStr = str.substring(1);} else {integerStr = str;decimalStr = "";}// integerStr去掉首0，不必去掉decimalStr的尾0(超出部分舍去)if (!integerStr.equals("")) {integerStr = Long.toString(Long.parseLong(integerStr));if (integerStr.equals("0")) {integerStr = "";}}// overflow超出处理能力，直接返回if (integerStr.length() > IUNIT.length) {System.out.println(str + ":超出处理能力");return str;}int[] integers = toArray(integerStr);// 整数部分数字boolean isMust5 = isMust5(integerStr);// 设置万单位int[] decimals = toArray(decimalStr);// 小数部分数字String intTerger2 = getChineseInteger(integers, isMust5, IUNIT, NUMBERS);String decimal2 = getChineseDecimal(decimals, NUMBERS, DUNIT);System.out.println("整数： " + intTerger2);System.out.println("小数： " + decimal2);String res = intTerger2 + decimal2;System.out.println("结果： " + res);return res;}public static int[] toArray(String number) {int[] array = new int[number.length()];for (int i = 0; i < number.length(); i++) {array[i] = Integer.parseInt(number.substring(i, i + 1));}return array;}public static boolean isMust5(String integerStr) {int length = integerStr.length();if (length > 4) {String subInteger = "";if (length > 8) {// 取得从低位数，第5到第8位的字串subInteger = integerStr.substring(length - 8, length - 4);} else {subInteger = integerStr.substring(0, length - 4);}return Integer.parseInt(subInteger) > 0;} else {return false;}}public static String getChineseDecimal(int[] decimals, String[] NUMBERS,String[] DUNIT) {StringBuffer chineseDecimal = new StringBuffer("");for (int i = 0; i < decimals.length; i++) {// 舍去3位小数之后的if (i == 3)break;chineseDecimal.append(decimals[i] == 0 ? "": (NUMBERS[decimals[i]] + DUNIT[i]));}return chineseDecimal.toString();}public static String getChineseInteger(int[] integers, boolean isMust5,String[] IUNIT, String[] NUMBERS) {StringBuffer chineseInteger = new StringBuffer("");int length = integers.length;for (int i = 0; i < length; i++) {// 0出现在关键位置：1234(万)5678(亿)9012(万)3456(元)// 特殊情况：10(拾元、壹拾元、壹拾万元、拾万元)String key = "";if (integers[i] == 0) {if ((length - i) == 13)// 万(亿)(必填)key = IUNIT[4];else if ((length - i) == 9)// 亿(必填)key = IUNIT[8];else if ((length - i) == 5 && isMust5)// 万(不必填)key = IUNIT[4];else if ((length - i) == 1)// 元(必填)key = IUNIT[0];// 0遇非0时补零，不包含最后一位if ((length - i) > 1 && integers[i + 1] != 0)key += NUMBERS[0];}chineseInteger.append(integers[i] == 0 ? key: (NUMBERS[integers[i]] + IUNIT[length - i - 1]));}return chineseInteger.toString();}public static void main(String[] args){String str = toChinese("1.34");System.out.println(str);}}