阿拉伯数字转化成人民币大写程序大家也见过很多，但是这个程序在我看来是功能最强大的，该程序考虑到小数问题，输入不规范问题，数值大小问题等等各种问题，该程序十分健壮！

1. import java.text.NumberFormat;
   
2. import java.util.HashMap;
   
3. public class ConvertChinesQ {
   
4. public static final String EMPTY = "";
   
5. public static final String ZERO = "零";
   
6. public static final String ONE = "壹";
   
7. public static final String TWO = "贰";
   
8. public static final String THREE = "叁";
   
9. public static final String FOUR = "肆";
   
10. public static final String FIVE = "伍";
    
11. public static final String SIX = "陆";
    
12. public static final String SEVEN = "柒";
    
13. public static final String EIGHT = "捌";
    
14. public static final String NINE = "玖";
    
15. public static final String TEN = "拾";
    
16. public static final String HUNDRED = "佰";
    
17. public static final String THOUSAND = "仟";
    
18. public static final String TEN_THOUSAND = "万";
    
19. public static final String HUNDRED_MILLION = "亿";
    
20. public static final String YUAN = "元";
    
21. public static final String JIAO = "角";
    
22. public static final String FEN = "分";
    
23. public static final String DOT = ".";
    
24. private static ConvertChinesQ formatter = null;
    
25. private HashMap chineseNumberMap = new HashMap();
    
26. private HashMap chineseMoneyPattern = new HashMap();
    
27. private NumberFormat numberFormat = NumberFormat.getInstance();
    
28. private ConvertChinesQ() {
    
29.   numberFormat.setMaximumFractionDigits(4);
    
30.   numberFormat.setMinimumFractionDigits(2);
    
31.   numberFormat.setGroupingUsed(false);
    
32.   chineseNumberMap.put("0", ZERO);
    
33.   chineseNumberMap.put("1", ONE);
    
34.   chineseNumberMap.put("2", TWO);
    
35.   chineseNumberMap.put("3", THREE);
    
36.   chineseNumberMap.put("4", FOUR);
    
37.   chineseNumberMap.put("5", FIVE);
    
38.   chineseNumberMap.put("6", SIX);
    
39.   chineseNumberMap.put("7", SEVEN);
    
40.   chineseNumberMap.put("8", EIGHT);
    
41.   chineseNumberMap.put("9", NINE);
    
42.   chineseNumberMap.put(DOT, DOT);
    
43.   chineseMoneyPattern.put("1", TEN);
    
44.   chineseMoneyPattern.put("2", HUNDRED);
    
45.   chineseMoneyPattern.put("3", THOUSAND);
    
46.   chineseMoneyPattern.put("4", TEN_THOUSAND);
    
47.   chineseMoneyPattern.put("5", TEN);
    
48.   chineseMoneyPattern.put("6", HUNDRED);
    
49.   chineseMoneyPattern.put("7", THOUSAND);
    
50.   chineseMoneyPattern.put("8", HUNDRED_MILLION);
    
51. }
    
52. public static ConvertChinesQ getInstance() {
    
53.   if (formatter == null)
    
54.    formatter = new ConvertChinesQ();
    
55.   return formatter;
    
56. }
    
57. public String format(String moneyStr) {
    
58.   checkPrecision(moneyStr);
    
59.   String result;
    
60.   result = convertToChineseNumber(moneyStr);
    
61.   result = addUnitsToChineseMoneyString(result);
    
62.   return result;
    
63. }
    
64. public String format(double moneyDouble) {
    
65.   return format(numberFormat.format(moneyDouble));
    
66. }
    
67. public String format(int moneyInt) {
    
68.   return format(numberFormat.format(moneyInt));
    
69. }
    
70. public String format(long moneyLong) {
    
71.   return format(numberFormat.format(moneyLong));
    
72. }
    
73. public String format(Number moneyNum) {
    
74.   return format(numberFormat.format(moneyNum));
    
75. }
    
76. private String convertToChineseNumber(String moneyStr) {
    
77.   String result;
    
78.   StringBuffer cMoneyStringBuffer = new StringBuffer();
    
79.   for (int i = 0; i < moneyStr.length(); i++) {
    
80.    cMoneyStringBuffer.append(chineseNumberMap.get(moneyStr.substring(
    
81.      i, i + 1)));
    
82.   }
    
83.   //拾佰仟万亿等都是汉字里面才有的单位，加上它们
    
84.   int indexOfDot = cMoneyStringBuffer.indexOf(DOT);
    
85.   int moneyPatternCursor = 1;
    
86.   for (int i = indexOfDot - 1; i > 0; i--) {
    
87.    cMoneyStringBuffer.insert(i, chineseMoneyPattern.get(EMPTY
    
88.      + moneyPatternCursor));
    
89.    moneyPatternCursor = moneyPatternCursor == 8 ? 1
    
90.      : moneyPatternCursor + 1;
    
91.   }
    
92.   String fractionPart = cMoneyStringBuffer.substring(cMoneyStringBuffer
    
93.     .indexOf("."));
    
94.   cMoneyStringBuffer.delete(cMoneyStringBuffer.indexOf("."),
    
95.     cMoneyStringBuffer.length());
    
96.   while (cMoneyStringBuffer.indexOf("零拾") != -1) {
    
97.    cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零拾"),
    
98.      cMoneyStringBuffer.indexOf("零拾") + 2, ZERO);
    
99.   }
    
100.   while (cMoneyStringBuffer.indexOf("零佰") != -1) {
     
101.    cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零佰"),
     
102.      cMoneyStringBuffer.indexOf("零佰") + 2, ZERO);
     
103.   }
     
104.   while (cMoneyStringBuffer.indexOf("零仟") != -1) {
     
105.    cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零仟"),
     
106.      cMoneyStringBuffer.indexOf("零仟") + 2, ZERO);
     
107.   }
     
108.   while (cMoneyStringBuffer.indexOf("零万") != -1) {
     
109.    cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零万"),
     
110.      cMoneyStringBuffer.indexOf("零万") + 2, TEN_THOUSAND);
     
111.   }
     
112.   while (cMoneyStringBuffer.indexOf("零亿") != -1) {
     
113.    cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零亿"),
     
114.      cMoneyStringBuffer.indexOf("零亿") + 2, HUNDRED_MILLION);
     
115.   }
     
116.   while (cMoneyStringBuffer.indexOf("零零") != -1) {
     
117.    cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零零"),
     
118.      cMoneyStringBuffer.indexOf("零零") + 2, ZERO);
     
119.   }
     
120.   if (cMoneyStringBuffer.lastIndexOf(ZERO) == cMoneyStringBuffer.length() - 1)
     
121.    cMoneyStringBuffer.delete(cMoneyStringBuffer.length() - 1,
     
122.      cMoneyStringBuffer.length());
     
123.   cMoneyStringBuffer.append(fractionPart);
     
124.   result = cMoneyStringBuffer.toString();
     
125.   return result;
     
126. }
     
127. private String addUnitsToChineseMoneyString(String moneyStr) {
     
128.   String result;
     
129.   StringBuffer cMoneyStringBuffer = new StringBuffer(moneyStr);
     
130.   int indexOfDot = cMoneyStringBuffer.indexOf(DOT);
     
131.   cMoneyStringBuffer.replace(indexOfDot, indexOfDot + 1, YUAN);
     
132.   cMoneyStringBuffer.insert(cMoneyStringBuffer.length() - 1, JIAO);
     
133.   cMoneyStringBuffer.insert(cMoneyStringBuffer.length(), FEN);
     
134.   if (cMoneyStringBuffer.indexOf("零角零分") != -1)//没有零头，加整
     
135.    cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零角零分"),
     
136.      cMoneyStringBuffer.length(), "整");
     
137.   else if (cMoneyStringBuffer.indexOf("零分") != -1)//没有零分，加整
     
138.    cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零分"),
     
139.      cMoneyStringBuffer.length(), "整");
     
140.   else {
     
141.    if (cMoneyStringBuffer.indexOf("零角") != -1)
     
142.     cMoneyStringBuffer.delete(cMoneyStringBuffer.indexOf("零角"),
     
143.       cMoneyStringBuffer.indexOf("零角") + 2);
     
144.    // tmpBuffer.append("整");
     
145.   }
     
146.   result = cMoneyStringBuffer.toString();
     
147.   return result;
     
148. }
     
149. private void checkPrecision(String moneyStr) {
     
150.   int fractionDigits = moneyStr.length() - moneyStr.indexOf(DOT) - 1;
     
151.   if (fractionDigits > 2)
     
152.    throw new RuntimeException("金额" + moneyStr + "的小数位多于两位。"); //精度不能比分低
     
153. }
     
154. public static void main(String args[]) throws Exception{
     
155.   System.out.println(getInstance().format(new Double(10000001.01)));
     
156.   throw new Exception("slkdfjsk");
     
157. }
     
158. }

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顶一个！！！