java 數字金額轉換中文金額

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public static String digitUppercase(double n){
String fraction[] = {"角", "分"};
String digit[] = { "零", "壹", "貳", "三", "肆", "伍", "陸", "柒", "捌", "玖" };
String unit[][] = {{"元", "萬", "億"},
{"", "拾", "佰", "仟"}};

String head = n < 0? "負": "";
n = Math.abs(n);

String s = "";
for (int i = 0; i < fraction.length; i++) {
s += (digit[(int)(Math.floor(n * 10 * Math.pow(10, i)) % 10)] + fraction[i]).replaceAll("(零.)+", "");
}
if(s.length()<1){
s = "整";
}
int integerPart = (int)Math.floor(n);

for (int i = 0; i < unit[0].length && integerPart > 0; i++) {
String p ="";
for (int j = 0; j < unit[1].length && n > 0; j++) {
p = digit[integerPart%10]+unit[1][j] + p;
integerPart = integerPart/10;
}
s = p.replaceAll("(零.)*零$", "").replaceAll("^$", "零") + unit[0][i] + s;
}
return head + s.replaceAll("(零.)*零元", "元").replaceFirst("(零.)+", "").replaceAll("(零.)+", "零").replaceAll("^整$", "零元整");
}

java 數字金額轉換中文金額

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