数字金额转换为汉字金额
一、源代码：DoubleMoneyToChineseMoney.java
1 package cn.com.zfc.example; 2 3 import java.math.BigDecimal; 4 import java.util.Scanner; 5 6 /** 7 * 数字转换为汉语中人民币的大写 8 * 9 * @author zfc 10 * 11 */ 12 public class DoubleMoneyToChineseMoney { 13 // 汉语中数字大写 14 private static final String[] CN_UPPER_NUMBER = { "零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖" }; 15 // 汉语中货币单位大写，这样的设计类似于占位符 16 private static final String[] CN_UPPER_MONETRAY_UNIT = { "分", "角", "元", "拾", "佰", "仟", "万", "拾", "佰", "仟", "亿", "拾", 17 "佰", "仟", "兆", "拾", "佰", "仟" }; 18 // 特殊字符：整 19 private static final String CN_FULL = "整"; 20 // 特殊字符：负 21 private static final String CN_NEGATIVE = "负"; 22 // 金额的精度，默认值为2 23 private static final int MONEY_PRECISION = 2; 24 // 特殊字符：零元整 25 private static final String CN_ZEOR_FULL = "零元" + CN_FULL; 26 27 /** 28 * 把输入的金额转换为汉语中人民币的大写 29 * 30 * @param numberOfMoney 31 * 输入的金额 32 * @return 对应的汉语大写 33 */ 34 public static String number2CNMontrayUnit(BigDecimal numberOfMoney) { 35 StringBuffer sb = new StringBuffer(); 36 // -1, 0, or 1 as the value of this BigDecimal is negative, zero, or 37 // positive. 38 int signum = numberOfMoney.signum(); 39 // 零元整的情况 40 if (signum == 0) { 41 return CN_ZEOR_FULL; 42 } 43 // 这里会进行金额的四舍五入 44 long number = numberOfMoney.movePointRight(MONEY_PRECISION).setScale(0, 4).abs().longValue(); 45 // 得到小数点后两位值 46 long scale = number % 100; 47 int numUnit = 0; 48 int numIndex = 0; 49 boolean getZero = false; 50 // 判断最后两位数，一共有四中情况：00 = 0, 01 = 1, 10, 11 51 if (!(scale > 0)) { 52 numIndex = 2; 53 number = number / 100; 54 getZero = true; 55 } 56 if ((scale > 0) && (!(scale % 10 > 0))) { 57 numIndex = 1; 58 number = number / 10; 59 getZero = true; 60 } 61 int zeroSize = 0; 62 while (true) { 63 if (number <= 0) { 64 break; 65 } 66 // 每次获取到最后一个数 67 numUnit = (int) (number % 10); 68 if (numUnit > 0) { 69 if ((numIndex == 9) && (zeroSize >= 3)) { 70 sb.insert(0, CN_UPPER_MONETRAY_UNIT[6]); 71 } 72 if ((numIndex == 13) && (zeroSize >= 3)) { 73 sb.insert(0, CN_UPPER_MONETRAY_UNIT[10]); 74 } 75 sb.insert(0, CN_UPPER_MONETRAY_UNIT[numIndex]); 76 sb.insert(0, CN_UPPER_NUMBER[numUnit]); 77 getZero = false; 78 zeroSize = 0; 79 } else { 80 ++zeroSize; 81 if (!(getZero)) { 82 sb.insert(0, CN_UPPER_NUMBER[numUnit]); 83 } 84 if (numIndex == 2) { 85 if (number > 0) { 86 sb.insert(0, CN_UPPER_MONETRAY_UNIT[numIndex]); 87 } 88 } else if (((numIndex - 2) % 4 == 0) && (number % 1000 > 0)) { 89 sb.insert(0, CN_UPPER_MONETRAY_UNIT[numIndex]); 90 } 91 getZero = true; 92 } 93 // 让number每次都去掉最后一个数 94 number = number / 10; 95 ++numIndex; 96 } 97 // 如果signum == -1，则说明输入的数字为负数，就在最前面追加特殊字符：负 98 if (signum == -1) { 99 sb.insert(0, CN_NEGATIVE); 100 } 101 // 输入的数字小数点后两位为"00"的情况，则要在最后追加特殊字符：整 102 if (!(scale > 0)) { 103 sb.append(CN_FULL); 104 } 105 return sb.toString(); 106 } 107 108 public static void main(String[] args) { 109 System.out.println("请输入一个数字金额："); 110 Scanner scanner = new Scanner(System.in); 111 double money = scanner.nextDouble(); 112 scanner.close(); 113 BigDecimal numberOfMoney = new BigDecimal(money); 114 String string = DoubleMoneyToChineseMoney.number2CNMontrayUnit(numberOfMoney); 115 System.out.println("你输入的数为：" + money + "，其对应汉字金额：" + string.toString()); 116 } 117 }
二、运行效果
