阿拉伯数字转换中文

转换结果：

23    转成  二十三
2.3   转成  二点三

import java.math.BigDecimal;

/**
 * 数字转换中文
 *
 * @author lbx
 */
public class DigitalToChineseUtil {

    private DigitalToChineseUtil() {
    }

    /**
     * 中文数字
     */
    private static final String[] CN_NUM = {"零", "一", "二", "三", "四", "五", "六", "七", "八", "九"};

    /**
     * 中文数字单位
     */
    private static final String[] CN_UNIT = {"", "十", "百", "千", "万", "十", "百", "千", "亿", "十", "百", "千"};

    /**
     * 特殊字符：负
     */
    private static final String CN_NEGATIVE = "负";

    /**
     * 特殊字符：点
     */
    private static final String CN_POINT = "点";
    /**
     * int 转 中文数字
     * 支持到int最大值
     *
     * @param intNum 要转换的整型数
     * @return 中文数字
     */
    public static String int2chineseNum(int intNum) {
        StringBuffer sb = new StringBuffer();
        boolean isNegative = false;
        if (intNum < 0) {
            isNegative = true;
            intNum *= -1;
        }
        int count = 0;
        while (intNum > 0) {
            sb.insert(0, CN_NUM[intNum % 10] + CN_UNIT[count]);
            intNum = intNum / 10;
            count++;
        }
        if (isNegative) {
            sb.insert(0, CN_NEGATIVE);
        }
        return sb.toString().replaceAll("零[千百十]", "零").replaceAll("零+万", "万")
                .replaceAll("零+亿", "亿").replaceAll("亿万", "亿零")
                .replaceAll("零+", "零").replaceAll("零$", "");
    }

    /**
     * bigDecimal 转 中文数字
     * 整数部分只支持到int的最大值
     *
     * @param bigDecimalNum 要转换的BigDecimal数
     * @return 中文数字
     */
    public static String bigDecimal2chineseNum(BigDecimal bigDecimalNum) {
        if (bigDecimalNum == null) {
            return CN_NUM[0];
        }
        StringBuffer sb = new StringBuffer();

        //将小数点后面的零给去除
        String numStr = bigDecimalNum.abs().stripTrailingZeros().toPlainString();
        String[] split = numStr.split("\\.");
        String integerStr = int2chineseNum(Integer.parseInt(split[0]));
        sb.append(integerStr);
        //如果传入的数有小数，则进行切割，将整数与小数部分分离
        if (split.length == 2) {
            //有小数部分
            sb.append(CN_POINT);
            String decimalStr = split[1];
            char[] chars = decimalStr.toCharArray();
            for (int i = 0; i < chars.length; i++) {
                int index = Integer.parseInt(String.valueOf(chars[i]));
                sb.append(CN_NUM[index]);
            }
        }
        //判断传入数字为正数还是负数
        int signum = bigDecimalNum.signum();
        if (signum == -1) {
            sb.insert(0, CN_NEGATIVE);
        }
        return sb.toString();
    }
}

package test;

import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;

public class ShuZiZhuanHanZi {

   public static void main(String[] args) {

      String jg = "";
      
      Scanner input = new Scanner(System.in);
      System.out.print("请输入要转换的数字：");
      int i = input.nextInt();
      String d = "";
      String n = String.valueOf(i);
      StringBuffer sb = new StringBuffer(n);
      n = sb.reverse().toString(); // 将字符串倒叙
      Map<Integer, String> map = new HashMap<Integer, String>( );
      for (int j = 0; j < n.length(); j++) {
         d = String.valueOf(n.charAt(j)); // 对map集合赋值
         map.put(j, d);
      }
      for (Integer in : map.keySet()) { // 遍历map集合
         String str = map.get(in);
         /*System.out.println(in + "     " + str);*/
         switch(str){
         case "1":str="一";break;
         case "2":str="二";break;
         case "3":str="三";break;
         case "4":str="四";break;
         case "5":str="五";break;
         case "6":str="六";break;
         case "7":str="七";break;
         case "8":str="八";break;
         case "9":str="九";break;
         case "0":str="零";break;
         }
          switch (in) { 
          case 0: jg+= str; break;
          case 1: jg+= "十"+str; break;
          case 2: jg+= "百"+str;break;
          case 3: jg+= "千"+str;break;
          case 4: jg+= "万"+str;break;
          case 5: jg+= "十"+str;break;
          case 6: jg+= "百"+str;break;
          case 7: jg+= "千"+str;break;
          case 8: jg+= "亿"+str;break;
          }       
      }
      StringBuffer sbi = new StringBuffer(jg);
      jg = sbi.reverse().toString();    
      if("一十".equals(jg.substring(0, 2))){
         jg = jg.substring(1);
         if("零".equals(jg.substring(jg.length()-1,jg.length()))){
            jg = jg.substring(0,jg.length()-1);
            System.out.println(jg);
         }else{
            System.out.println(jg);
         }
      }
      if("零".equals(jg.substring(jg.length()-1,jg.length()))){
         jg = jg.substring(0,jg.length()-1);
         System.out.println(jg);
         }
      else{
         System.out.println(jg);
      }
   }
}

public static String int2chineseNum(int src) {
        final String num[] = {"零", "一", "二", "三", "四", "五", "六", "七", "八", "九"};
        final String unit[] = {"", "十", "百", "千", "万", "十", "百", "千", "亿", "十", "百", "千"};
        String dst = "";
        int count = 0;
        while(src > 0) {
            dst = (num[src % 10] + unit[count]) + dst;
            src = src / 10;
            count++;
        }
        return dst.replaceAll("零[千百十]", "零").replaceAll("零+万", "万")
                .replaceAll("零+亿", "亿").replaceAll("亿万", "亿零")
                .replaceAll("零+", "零").replaceAll("零$", "");
    }
    
public static void main(String[] args) {
        System.out.println(int2chineseNum(111250055));
    }

输出：

一亿一千一百二十五万零五十五

转载：Java中数字转中文数字