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Copy pathTransfer.java
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60 lines (54 loc) · 2 KB
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package interview;
////评测题目: 金额转换,将小写金额转换成大写,精确到亿
//
//要求:
//
// 1. 代码尽量优雅,可运行
// 2. 实现题目要求,注意边界处理
//
// 示例:
// 输入:1098.87
// 输出:壹仟零玖拾捌圆捌角柒分
// 输入:89
// 输出:捌拾玖圆整
public class Transfer {
private static final String[] NUMBERS = {"零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖"};
private static final char[] IUNIT = new char[]{'圆', '拾', '佰', '仟', '万', '拾', '佰', '仟', '亿', '拾', '佰', '仟', '万', '拾', '佰', '仟'};
private static final char[] DUNIT = new char[]{'角', '分', '厘'};
public static String transfer(Double val) {
StringBuffer sbf = new StringBuffer();
int iVal = val.intValue();
int preNum = 0;
if (iVal == 0) {
sbf.insert(0, "零圆");
} else {
for (int i = 0; iVal != 0; i++) {
int num = iVal % 10;
if (num == 0) { //等于零的时候
if (i % 4 == 0) {
sbf.insert(0, IUNIT[i]);
} else if (preNum != 0) {
sbf.insert(0, NUMBERS[num]);
}
} else {
sbf.insert(0, IUNIT[i]);
sbf.insert(0, NUMBERS[num]);
}
preNum = num;
iVal /= 10;
}
}
String dVal = String.format("%.3f", val - val.intValue());
for (int i = 2; i < dVal.length(); i++) {
int v = Integer.parseInt(dVal.substring(i,i+1));
sbf.append(NUMBERS[v]);
sbf.append(DUNIT[i-2]);
}
return sbf.toString();
}
public static void main(String[] args) {
System.out.println(transfer(20300098.876));
System.out.println(transfer(09.876));
System.out.println(transfer(109.876));
}
}