数字转换金额

package com.chenqian.test;

import java.awt.image.BufferStrategy;

import java.util.Scanner;

public class NumberToUpper {

 /** 大写数字 */

 private static final char[] big = "零壹贰叁肆伍陸柒捌玖".toCharArray();

 /** 整数部分的单位 */

 private static final char[] iunit = "元拾佰仟万亿".toCharArray();

 /** 小数部分的单位 */

 // private static final char[] dunit = {'角','分'};

 private static final String toChinese(String num) {

  char[] arabia = num.toCharArray();

  int length = num.length();

  StringBuffer result = new StringBuffer(length * 2);

  for (int i = 0; i = 9) {

   if (varlen == 9)

    c = iunit[5];

   else

    c = iunit[varlen - 9];

  } else if (varlen >= 5) {

   if (varlen == 5)

    c = iunit[4];

   else

    c = iunit[varlen - 5];

  } else

   c = iunit[varlen - 1];

  return c;

 }

 public static void main(String[] args) {

  System.out.print("请输入需要转换的金额(13位整数)：");

  Scanner scanner = new Scanner(System.in);

  String number = scanner.nextLine();

  

  String result;

  // String expression = "\\d{1,13
}";

  String expression = "[1-9]\\d{0,12}";//正则表达式

  if (number.matches(expression))

   result = toChinese(number);

  else

   result = "输入有误，无法计算";

  System.out.println(result);

  

  System.out.print("是否继续(Y/N)：");

  String yn = scanner.next();

  if(yn.equalsIgnoreCase("y"))

   main(args);

  else

   System.exit(0);

   

 }

}

评论

3 楼 bardo 2011-04-17  

建议看看这个代码
http://bardo.iteye.com/admin/blogs/983559

2 楼 ychda 2008-09-11  

格式化一下吧。
程序不错。

1 楼 ychda 2008-09-11  

package com.chenqian.test;

import java.util.Scanner;

public class NumberToUpper {
    /** 大写数字 */
    private static final char[] big = "零壹贰叁肆伍陸柒捌玖".toCharArray();

    /** 整数部分的单位 */
    private static final char[] iunit = "元拾佰仟万亿".toCharArray();

    /** 小数部分的单位 */
    // private static final char[] dunit = { '角', '分' };
    private static final String toChinese(String num) {
        char[] arabia = num.toCharArray();
        int length = num.length();
        StringBuffer result = new StringBuffer(length * 2);
        for (int i = 0; i < length; i++) {
            int j = Character.getNumericValue(arabia[i]);
            int varlen = length - i;

            if (j == 0) {
                if (varlen == 9 || varlen == 5 || varlen == 1)// 例外条件
                    result.append(addUnit(varlen));
                if (i < length - 1)
                    if (Character.getNumericValue(arabia[i + 1]) != 0)
                        result.append(big[0]);
            } else {
                result.append(big[j]);
                result.append(addUnit(varlen));
            }
        }
        return result.toString();
    }

    /*
     * 添加单位
     */
    private static char addUnit(int varlen) {
        char c;
        if (varlen >= 9) {
            if (varlen == 9)
                c = iunit[5];
            else
                c = iunit[varlen - 9];
        } else if (varlen >= 5) {
            if (varlen == 5)
                c = iunit[4];
            else
                c = iunit[varlen - 5];
        } else
            c = iunit[varlen - 1];
        return c;
    }

    public static void main(String[] args) {
        System.out.print("请输入需要转换的金额(13位整数)：");
        Scanner scanner = new Scanner(System.in);
        String number = scanner.nextLine();

        String result;
        // String expression = "\\d{1,13}";
        String expression = "[1-9]\\d{0,12}";// 正则表达式
        if (number.matches(expression))
            result = toChinese(number);
        else
            result = "输入有误，无法计算";
        System.out.println(result);

        System.out.print("是否继续(Y/N)：");
        String yn = scanner.next();
        if (yn.equalsIgnoreCase("y"))
            main(args);
        else
            System.exit(0);
    }
}