数字转成大写中文

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import java.math.BigDecimal;
/**
 *
 *@author jack chen
 *@since 2009-07
 */
public class Number2char{
  /*
  eg:640 409 329
     987 654 321  //对应的坐标
     &&& &&& &&&  //替换成对应的字符 (如果是0加上标记)
     --- --- ---  //每位修辞符常量
          *       //每隔5位数字修辞符常量
  */
  //数字转中文常量
  private final static String[] C_N = {"零","壹","贰","叁","肆","伍","陆","柒","捌","玖"};
  //每隔5位数字修辞符常量
  private final static String[] C_F = {"","万","亿","兆","吉","太","拍","艾"};
  //对应的每位修辞符常量
  private final static String[] C_S = {"","拾","佰","仟"};
  private final static String[] CNY = {"元", "角", "分", "毫", "厘"};
  //"-"
  private final static String negative = "负";
  //"+"
  private final static String positive = "";
 
  /**将整数转换成对应的中文字符串
   *@param l
   *@return StringBuffed
   */
  public static String toChineseChar(long l){
    //定义变量保存中文字符串
    StringBuilder sb = new StringBuilder();
    //将阿拉伯数字转换为无符号的字符串数组
    char [] ch = (Math.abs(l)+"").toCharArray();
    //加上符号
    sb.append(l<0?negative:positive);
    //定义一个标记,判断该数位前面是否有'0'
    boolean beforeHaveZore = false;
    //遍历中文字符串
    for(int i = 0,j = ch.length-1;i<ch.length;i++,j--){
        //如果首位是1且是十位就不用加'壹'了:eg 15 拾伍   150213 拾伍万零贰佰壹叁  150013 拾伍万零壹拾叁 拾亿零壹拾万/拾亿零拾万
        if(i == 0  && ch[i]-48 == 1 && j%4 == 1){
          sb.append(C_S[1]);
        //判断这个数字是否为0且它前面没有0
        }else if(ch[i] !=48 && !beforeHaveZore)
            //中文常量 + 对应的每位修辞符常量 + 每隔4位数字修辞符常量
            sb.append(C_N[ch[i]-48]+C_S[j%4] + C_F[j%4 == 0?j/4:0]);
        //判断这个数字是否为0且它前面有0
        else if(ch[i] !=48 && beforeHaveZore){
            //中文常量"零"+中文常量+对应的每位修辞符常量+每隔4位数字修辞符常量
            sb.append(C_N[0]+C_N[ch[i]-48]+C_S[j%4] + C_F[j%4 == 0?j/4:0]);
            //消出标记
            beforeHaveZore = false;
        //这个数字是0
        }else{
          //如果这个数的位置不是第5位?标记:不标记
          beforeHaveZore = beforeHaveZore||j%4!=0;
          //每隔5位数字修辞符常量 eg: 50000 伍万
          sb.append( C_F[j%4 == 0?j/4:0]);
        }
    }
    return sb.toString();
  }
  
  /**
   * To CNY 
   * @param d
   * @return
   */
  public static String toChineseCNY(Double d) {
    long l = d.longValue();
    if (d - l == 0) {
      return toChineseChar(l) + CNY[0] + "整";
    }
    String s = (d + "").split("\\.")[1];
    
    StringBuffer sb = new StringBuffer(s.length() * 2);
    int i = 1;
    for (char c : s.toCharArray()) {
      if (c-48 == 0) {
        i ++;
        continue;
      }
      sb.append(C_N[c-48] + CNY[i ++]);
      if (CNY.length == i) {
        break;
      }
    }
    return toChineseChar(l) + CNY[0]+ sb;
  }
  
  public static String toChineseChar (Double d) {
    long l = d.longValue();
    if (d - l == 0) {
      return toChineseChar(l);
    }
    String s = (BigDecimal.valueOf(d).toPlainString()).split("\\.")[1];
    StringBuffer sb = new StringBuffer(s.length());
    sb.append("点");
    for (char c : s.toCharArray()) {
      sb.append(C_N[c-48]);
    }
    return toChineseChar(l) + sb;
  }
 
  public static void main(String[] args) {
    System.out.println(toChineseChar(120_030));//拾贰万零叁拾
    System.out.println(toChineseChar(120_003));//拾贰万零叁
    System.out.println(toChineseChar(12_000_003));//壹仟贰佰万零叁
  }
 
}