java实现整数转化为中文大写金额的方法

在日常生活中，我们经常会将阿拉伯数字转化为中文大写的情况："零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖", "拾", "佰", "仟", "万", "亿"，因此自己就编写一个类，实现该功能的转化。
实现过程：
对于这个问题的实现，我们首先把数字按四位一个拆开（符合我们读数字的习惯），然后对这四位数，做出他的读法，具体代码如下：

PRivate static String getNumberStr1000 (int num) {
      if (num >
 9999 || num  0) {
       return "";
  }
      int q = num / 1000;
      int b = (num / 100) % 10;
      int s = (num / 10) % 10;
      int g = num % 10;
      StringBuffer sb = new StringBuffer();
      //千  if (q >
 0) {
       sb.apPEnd(NUMBER1[q]);
       sb.append(NUMBER2[3]);
  }
      //百  if (b >
 0) {
       sb.append(NUMBER1[b]);
       sb.append(NUMBER2[2]);
  }
 else {
   if (q != 0) {
        sb.append(NUMBER2[0]);
   }
  }
      //十  if (s >
 0) {
       sb.append(NUMBER1[s]);
       sb.append(NUMBER2[1]);
  }
 else {
   if (b != 0) {
        sb.append(NUMBER2[0]);
   }
  }
      //个  if (g >
 0) {
       sb.append(NUMBER1[g]);
  }
      return sb.toString();
 }
     

下面我们只需要在编写一个方法，实现每个四位数的读法以及对应的单位即可，具体代码如下：

public static String getNumberStr(int num) {
  if (num  0) {
       return "";
  }
  if (num == 0) {
       return NUMBER1[0];
  }
      int splIT = 10000;
      int y = num / (split * split);
      int w = (num / split) % split;
      int g = num % split;
      StringBuffer sb = new StringBuffer();
      //亿  if (y >
 0) {
       sb.append(getNumberStr1000(y));
       sb.append(NUMBER2[5]);
  }
      //万  if (w >
 999) {
       sb.append(getNumberStr1000(w));
       sb.append(NUMBER2[4]);
  }
 else {
       if (w >
 0) {
    if (y != 0) {
         sb.append(NUMBER2[0]);
    }
        sb.append(getNumberStr1000(w));
        sb.append(NUMBER2[4]);
   }
  }
      //万以下  if (g >
 0) {
   if (w != 0) {
        if (g >
 999) {
         sb.append(getNumberStr1000(g));
    }
 else {
         sb.append(NUMBER2[0]);
         sb.append(getNumberStr1000(g));
    }
       }
 else {
    if (y != 0) {
         sb.append(NUMBER2[0]);
    }
        sb.append(getNumberStr1000(g));
   }
  }
      return sb.toString();
 }
     

完整源代码：

 /**  *@Description:   */ package com.lulei.util;
  public class NumberUtil {
  private static String[] NUMBER1 = {
"零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖"}
    ;
  private static String[] NUMBER2 = {
"零", "拾", "佰", "仟", "万", "亿"}
    ;
    /**   * @param num   * @return   * @Author:lulei   * @Description:将数字转化为大写   */  public static String getNumberStr(int num) {
   if (num  0) {
        return "";
   }
   if (num == 0) {
        return NUMBER1[0];
   }
       int split = 10000;
       int y = num / (split * split);
       int w = (num / split) % split;
       int g = num % split;
       StringBuffer sb = new StringBuffer();
       //亿   if (y >
 0) {
        sb.append(getNumberStr1000(y));
        sb.append(NUMBER2[5]);
   }
       //万   if (w >
 999) {
        sb.append(getNumberStr1000(w));
        sb.append(NUMBER2[4]);
   }
 else {
        if (w >
 0) {
     if (y != 0) {
          sb.append(NUMBER2[0]);
     }
         sb.append(getNumberStr1000(w));
         sb.append(NUMBER2[4]);
    }
   }
       //万以下   if (g >
 0) {
    if (w != 0) {
         if (g >
 999) {
          sb.append(getNumberStr1000(g));
     }
 else {
          sb.append(NUMBER2[0]);
          sb.append(getNumberStr1000(g));
     }
         }
 else {
     if (y != 0) {
          sb.append(NUMBER2[0]);
     }
         sb.append(getNumberStr1000(g));
    }
   }
       return sb.toString();
  }
    /**   * @param num   * @return   * @Description:对万以下的数字进行大小写转化   */  private static String getNumberStr1000 (int num) {
       if (num >
 9999 || num  0) {
        return "";
   }
       int q = num / 1000;
       int b = (num / 100) % 10;
       int s = (num / 10) % 10;
       int g = num % 10;
       StringBuffer sb = new StringBuffer();
       //千   if (q >
 0) {
        sb.append(NUMBER1[q]);
        sb.append(NUMBER2[3]);
   }
       //百   if (b >
 0) {
        sb.append(NUMBER1[b]);
        sb.append(NUMBER2[2]);
   }
 else {
    if (q != 0) {
         sb.append(NUMBER2[0]);
    }
   }
       //十   if (s >
 0) {
        sb.append(NUMBER1[s]);
        sb.append(NUMBER2[1]);
   }
 else {
    if (b != 0) {
         sb.append(NUMBER2[0]);
    }
   }
       //个   if (g >
 0) {
        sb.append(NUMBER1[g]);
   }
       return sb.toString();
  }
   public static void main(String[] args) {
       // TODO Auto-generated method stub   int i = 1;
       System.out.println(i + "--" + NumberUtil.getNumberStr(i));
       i = 1001;
       System.out.println(i + "--" + NumberUtil.getNumberStr(i));
       i = 100101;
       System.out.println(i + "--" + NumberUtil.getNumberStr(i));
       i = 10100101;
       System.out.println(i + "--" + NumberUtil.getNumberStr(i));
       i = 1234567890;
       System.out.println(i + "--" + NumberUtil.getNumberStr(i));
  }
  }
    

 测试运行结果：

希望本文所述对大家学习java程序设计有所帮助。

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