转载地址：http://www.open-open.com/lib/view/open1376032417901.html
小写转大写
/**
*金额大小写转换工具类
*/
public class MoneyUtil {
/** 大写数字 */
private static final String[] NUMBERS = { "零", "壹", "贰", "叁", "肆", "伍", "陆",
"柒", "捌", "玖" };
/** 整数部分的单位 */
private static final 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 */
private static final String[] DUNIT = { "角", "分", "厘" };
/**
* 得到大写金额。
*/
public static String toChinese(String str) {
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
return getChineseInteger(integers, isMust5) + getChineseDecimal(decimals);
}
/**
* 整数部分和小数部分转换为数组，从高位至低位
*/
private 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;
}
/**
* 得到中文金额的整数部分。
*/
private static String getChineseInteger(int[] integers, boolean isMust5) {
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();
}
/**
* 得到中文金额的小数部分。
*/
private static String getChineseDecimal(int[] decimals) {
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();
}
/**
* 判断第5位数字的单位"万"是否应加。
*/
private 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 void main(String[] args) {
// MoneyUtil moneyUtil = new MoneyUtil();
// System.out.println(moneyUtil.toChinese("10001"));
// }
}
大写转小写
import java.util.HashMap;
import java.util.Map;
public class CNNMFilter {
private static final Character[] CN_NUMERIC = { '一', '二', '三', '四', '五',
'六', '七', '八', '九', '壹', '贰', '叁', '肆', '伍', '陆', '柒', '捌', '玖',
'十', '百', '千', '拾', '佰', '仟', '万', '亿', '○', 'Ｏ', '零' };
private static Map<Character, Integer> cnNumeric = null;
static {
cnNumeric = new HashMap<Character, Integer>(40, 0.85f);
for (int j = 0; j < 9; j++)
cnNumeric.put(CN_NUMERIC[j], j + 1);
for (int j = 9; j < 18; j++)
cnNumeric.put(CN_NUMERIC[j], j - 8);
cnNumeric.put('两', 2);
cnNumeric.put('十', 10);
cnNumeric.put('拾', 10);
cnNumeric.put('百', 100);
cnNumeric.put('佰', 100);
cnNumeric.put('千', 1000);
cnNumeric.put('仟', 1000);
cnNumeric.put('万', 10000);
cnNumeric.put('亿', 100000000);
}
public static int isCNNumeric(char c) {
Integer i = cnNumeric.get(c);
if (i == null)
return -1;
return i.intValue();
}
public static int cnNumericToArabic(String cnn, boolean flag) {
cnn = cnn.trim();
if (cnn.length() == 1)
return isCNNumeric(cnn.charAt(0));
if (flag)
cnn = cnn.replace('佰', '百').replace('仟', '千').replace('拾', '十')
.replace('零', ' ');
// System.out.println(cnn);
int yi = -1, wan = -1, qian = -1, bai = -1, shi = -1;
int val = 0;
yi = cnn.lastIndexOf('亿');
if (yi > -1) {
val += cnNumericToArabic(cnn.substring(0, yi), false) * 100000000;
if (yi < cnn.length() - 1)
cnn = cnn.substring(yi + 1, cnn.length());
else
cnn = "";
if (cnn.length() == 1) {
int arbic = isCNNumeric(cnn.charAt(0));
if (arbic <= 10)
val += arbic * 10000000;
cnn = "";
}
}
wan = cnn.lastIndexOf('万');
if (wan > -1) {
val += cnNumericToArabic(cnn.substring(0, wan), false) * 10000;
if (wan < cnn.length() - 1)
cnn = cnn.substring(wan + 1, cnn.length());
else
cnn = "";
if (cnn.length() == 1) {
int arbic = isCNNumeric(cnn.charAt(0));
if (arbic <= 10)
val += arbic * 1000;
cnn = "";
}
}
qian = cnn.lastIndexOf('千');
if (qian > -1) {
val += cnNumericToArabic(cnn.substring(0, qian), false) * 1000;
if (qian < cnn.length() - 1)
cnn = cnn.substring(qian + 1, cnn.length());
else
cnn = "";
if (cnn.length() == 1) {
int arbic = isCNNumeric(cnn.charAt(0));
if (arbic <= 10)
val += arbic * 100;
cnn = "";
}
}
bai = cnn.lastIndexOf('百');
if (bai > -1) {
val += cnNumericToArabic(cnn.substring(0, bai), false) * 100;
if (bai < cnn.length() - 1)
cnn = cnn.substring(bai + 1, cnn.length());
else
cnn = "";
if (cnn.length() == 1) {
int arbic = isCNNumeric(cnn.charAt(0));
if (arbic <= 10)
val += arbic * 10;
cnn = "";
}
}
shi = cnn.lastIndexOf('十');
if (shi > -1) {
if (shi == 0)
val += 1 * 10;
else
val += cnNumericToArabic(cnn.substring(0, shi), false) * 10;
if (shi < cnn.length() - 1)
cnn = cnn.substring(shi + 1, cnn.length());
else
cnn = "";
}
cnn = cnn.trim();
for (int j = 0; j < cnn.length(); j++)
val += isCNNumeric(cnn.charAt(j))
* Math.pow(10, cnn.length() - j - 1);
return val;
}
public static int qCNNumericToArabic(String cnn) {
int val = 0;
cnn = cnn.trim();
for (int j = 0; j < cnn.length(); j++)
val += isCNNumeric(cnn.charAt(j))
* Math.pow(10, cnn.length() - j - 1);
return val;
}
public static void main(String[] args) {
int val = 0;
long s = System.nanoTime();
val = cnNumericToArabic("三亿二千零六万七千五百六", true);
System.out.println(val);
val = cnNumericToArabic("一九九八", true);
System.out.println(val);
long e = System.nanoTime();
System.out.format("Done[" + val + "], cost: %.5fsec\n",
((float) (e - s)) / 1E9);
}
}
金额转换工具类
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转载自lihongtai.iteye.com/blog/2176044
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