金额转换，阿拉伯数字的金额转换成中国传统的形式如：（￥1011）－>（一千零一拾一元整）输出。

1. package test.format;
   
2. import java.text.NumberFormat;
   
3. import java.util.HashMap;
   
4. public class SimpleMoneyFormat {
   
5. public static final String EMPTY = "";
   
6. public static final String ZERO = "零";
   
7. public static final String ONE = "壹";
   
8. public static final String TWO = "贰";
   
9. public static final String THREE = "叁";
   
10. public static final String FOUR = "肆";
    
11. public static final String FIVE = "伍";
    
12. public static final String SIX = "陆";
    
13. public static final String SEVEN = "柒";
    
14. public static final String EIGHT = "捌";
    
15. public static final String NINE = "玖";
    
16. public static final String TEN = "拾";
    
17. public static final String HUNDRED = "佰";
    
18. public static final String THOUSAND = "仟";
    
19. public static final String TEN_THOUSAND = "万";
    
20. public static final String HUNDRED_MILLION = "亿";
    
21. public static final String YUAN = "元";
    
22. public static final String JIAO = "角";
    
23. public static final String FEN = "分";
    
24. public static final String DOT = ".";
    
25. 
    
26. private static SimpleMoneyFormat formatter = null;
    
27. private HashMap chineseNumberMap = new HashMap();
    
28. private HashMap chineseMoneyPattern = new HashMap();
    
29. private NumberFormat numberFormat = NumberFormat.getInstance();
    
30. 
    
31. private SimpleMoneyFormat() {
    
32. numberFormat.setMaximumFractionDigits(4);
    
33. numberFormat.setMinimumFractionDigits(2);
    
34. numberFormat.setGroupingUsed(false);
    
35. 
    
36. chineseNumberMap.put("0", ZERO);
    
37. chineseNumberMap.put("1", ONE);
    
38. chineseNumberMap.put("2", TWO);
    
39. chineseNumberMap.put("3", THREE);
    
40. chineseNumberMap.put("4", FOUR);
    
41. chineseNumberMap.put("5", FIVE);
    
42. chineseNumberMap.put("6", SIX);
    
43. chineseNumberMap.put("7", SEVEN);
    
44. chineseNumberMap.put("8", EIGHT);
    
45. chineseNumberMap.put("9", NINE);
    
46. chineseNumberMap.put(DOT, DOT);
    
47. 
    
48. chineseMoneyPattern.put("1", TEN);
    
49. chineseMoneyPattern.put("2", HUNDRED);
    
50. chineseMoneyPattern.put("3", THOUSAND);
    
51. chineseMoneyPattern.put("4", TEN_THOUSAND);
    
52. chineseMoneyPattern.put("5", TEN);
    
53. chineseMoneyPattern.put("6", HUNDRED);
    
54. chineseMoneyPattern.put("7", THOUSAND);
    
55. chineseMoneyPattern.put("8", HUNDRED_MILLION);
    
56. }
    
57. 
    
58. public static SimpleMoneyFormat getInstance() {
    
59. if (formatter == null)
    
60. formatter = new SimpleMoneyFormat();
    
61. return formatter;
    
62. }
    
63. 
    
64. public String format(String moneyStr) {
    
65. checkPrecision(moneyStr);
    
66. String result;
    
67. result = convertToChineseNumber(moneyStr);
    
68. result = addUnitsToChineseMoneyString(result);
    
69. return result;
    
70. }
    
71. 
    
72. public String format(double moneyDouble) {
    
73. return format(numberFormat.format(moneyDouble));
    
74. }
    
75. 
    
76. public String format(int moneyInt) {
    
77. return format(numberFormat.format(moneyInt));
    
78. }
    
79. 
    
80. public String format(long moneyLong) {
    
81. return format(numberFormat.format(moneyLong));
    
82. }
    
83. 
    
84. public String format(Number moneyNum) {
    
85. return format(numberFormat.format(moneyNum));
    
86. }
    
87. 
    
88. private String convertToChineseNumber(String moneyStr) {
    
89. String result;
    
90. StringBuffer cMoneyStringBuffer = new StringBuffer();
    
91. for (int i = 0; i < moneyStr.length(); i++) {
    
92. cMoneyStringBuffer.append(chineseNumberMap.get(moneyStr.substring(i, i + 1)));
    
93. }
    
94. //拾佰仟万亿等都是汉字里面才有的单位，加上它们
    
95. int indexOfDot = cMoneyStringBuffer.indexOf(DOT);
    
96. int moneyPatternCursor = 1;
    
97. for (int i = indexOfDot - 1; i > 0; i--) {
    
98. cMoneyStringBuffer.insert(i, chineseMoneyPattern.get(EMPTY + moneyPatternCursor));
    
99. moneyPatternCursor = moneyPatternCursor == 8 ? 1 : moneyPatternCursor + 1;
    
100. }
     
101. 
     
102. String fractionPart = cMoneyStringBuffer.substring(cMoneyStringBuffer.indexOf("."));
     
103. cMoneyStringBuffer.delete(cMoneyStringBuffer.indexOf("."), cMoneyStringBuffer.length());
     
104. while (cMoneyStringBuffer.indexOf("零拾") != -1) {
     
105. cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零拾"), cMoneyStringBuffer.indexOf("零拾") + 2, ZERO);
     
106. }
     
107. while (cMoneyStringBuffer.indexOf("零佰") != -1) {
     
108. cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零佰"), cMoneyStringBuffer.indexOf("零佰") + 2, ZERO);
     
109. }
     
110. while (cMoneyStringBuffer.indexOf("零仟") != -1) {
     
111. cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零仟"), cMoneyStringBuffer.indexOf("零仟") + 2, ZERO);
     
112. }
     
113. while (cMoneyStringBuffer.indexOf("零万") != -1) {
     
114. cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零万"), cMoneyStringBuffer.indexOf("零万") + 2, TEN_THOUSAND);
     
115. }
     
116. while (cMoneyStringBuffer.indexOf("零亿") != -1) {
     
117. cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零亿"), cMoneyStringBuffer.indexOf("零亿") + 2, HUNDRED_MILLION);
     
118. }
     
119. while (cMoneyStringBuffer.indexOf("零零") != -1) {
     
120. cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零零"), cMoneyStringBuffer.indexOf("零零") + 2, ZERO);
     
121. }
     
122. if (cMoneyStringBuffer.lastIndexOf(ZERO) == cMoneyStringBuffer.length() - 1)
     
123. cMoneyStringBuffer.delete(cMoneyStringBuffer.length() - 1, cMoneyStringBuffer.length());
     
124. cMoneyStringBuffer.append(fractionPart);
     
125. 
     
126. result = cMoneyStringBuffer.toString();
     
127. return result;
     
128. }
     
129. 
     
130. 
     
131. private String addUnitsToChineseMoneyString(String moneyStr) {
     
132. String result;
     
133. StringBuffer cMoneyStringBuffer = new StringBuffer(moneyStr);
     
134. int indexOfDot = cMoneyStringBuffer.indexOf(DOT);
     
135. cMoneyStringBuffer.replace(indexOfDot, indexOfDot + 1, YUAN);
     
136. cMoneyStringBuffer.insert(cMoneyStringBuffer.length() - 1, JIAO);
     
137. cMoneyStringBuffer.insert(cMoneyStringBuffer.length(), FEN);
     
138. if (cMoneyStringBuffer.indexOf("零角零分") != -1)//没有零头，加整
     
139. cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零角零分"), cMoneyStringBuffer.length(), "整");
     
140. else
     
141. if (cMoneyStringBuffer.indexOf("零分") != -1)//没有零分，加整
     
142. cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零分"), cMoneyStringBuffer.length(), "整");
     
143. else {
     
144. if(cMoneyStringBuffer.indexOf("零角")!=-1)
     
145. cMoneyStringBuffer.delete(cMoneyStringBuffer.indexOf("零角"),cMoneyStringBuffer.indexOf("零角")+2);
     
146. // tmpBuffer.append("整");
     
147. }
     
148. result = cMoneyStringBuffer.toString();
     
149. return result;
     
150. }
     
151. 
     
152. private void checkPrecision(String moneyStr) {
     
153. int fractionDigits = moneyStr.length() - moneyStr.indexOf(DOT) - 1;
     
154. if (fractionDigits > 2)
     
155. throw new RuntimeException("金额" + moneyStr + "的小数位多于两位。"); //精度不能比分低
     
156. }
     
157. 
     
158. public static void main(String args[]) {
     
159. System.out.println(getInstance().format(new Double(10010001.01)));
     
160. }
     
161. }
     
162. 
     

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应该可以改一下，能否考虑从数组或者集合入手。占个沙发，继续关注！

静待{:soso_e127:}优化

建议去看看代码重构，代码之美两本书。
这个真的很经典的。

二进制和ASCII码之间线程30H，可以在二进制之间加30h，就变成ASCII码，在计算机中显示了