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职友集>程序员面试题 > 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

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

2015-05-26 06:30:01 阅读( 295 )

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标签:程序员面试题

package test.format;
import java.text.NumberFormat;
import java.util.HashMap;
public class SimpleMoneyFormat {
public static final String EMPTY = “”;
public static final String ZERO = “零”;
public static final String ONE = “壹”;
public static final String TWO = “贰”;
public static final String THREE = “叁”;
public static final String FOUR = “肆”;
public static final String FIVE = “伍”;
public static final String SIX = “陆”;
public static final String SEVEN = “柒”;
public static final String EIGHT = “捌”;
public static final String NINE = “玖”;
public static final String TEN = “拾”;
public static final String HUNDRED = “佰”;
public static final String THOUSAND = “仟”;
public static final String TEN_THOUSAND = “万”;
public static final String HUNDRED_MILLION = “亿”;
public static final String YUAN = “元”;
public static final String JIAO = “角”;
public static final String FEN = “分”;
public static final String DOT = “.”;

private static SimpleMoneyFormat formatter = null;
private HashMap chineseNumberMap = new HashMap();
private HashMap chineseMoneyPattern = new HashMap();
private NumberFormat numberFormat = NumberFormat.getInstance();

private SimpleMoneyFormat() {
numberFormat.setMaximumFractionDigits(4);
numberFormat.setMinimumFractionDigits(2);
numberFormat.setGroupingUsed(false);

chineseNumberMap.put(“0″, ZERO);
chineseNumberMap.put(“1″, ONE);
chineseNumberMap.put(“2″, TWO);
chineseNumberMap.put(“3″, THREE);
chineseNumberMap.put(“4″, FOUR);
chineseNumberMap.put(“5″, FIVE);
chineseNumberMap.put(“6″, SIX);
chineseNumberMap.put(“7″, SEVEN);
chineseNumberMap.put(“8″, EIGHT);
chineseNumberMap.put(“9″, NINE);
chineseNumberMap.put(DOT, DOT);

chineseMoneyPattern.put(“1″, TEN);
chineseMoneyPattern.put(“2″, HUNDRED);
chineseMoneyPattern.put(“3″, THOUSAND);
chineseMoneyPattern.put(“4″, TEN_THOUSAND);
chineseMoneyPattern.put(“5″, TEN);
chineseMoneyPattern.put(“6″, HUNDRED);
chineseMoneyPattern.put(“7″, THOUSAND);
chineseMoneyPattern.put(“8″, HUNDRED_MILLION);
}

public static SimpleMoneyFormat getInstance() {
if (formatter == null)
formatter = new SimpleMoneyFormat();
return formatter;
}

public String format(String moneyStr) {
checkPrecision(moneyStr);
String result;
result = convertToChineseNumber(moneyStr);
result = addUnitsToChineseMoneyString(result);
return result;
}

public String format(double moneyDouble) {
return format(numberFormat.format(moneyDouble));
}

public String format(int moneyInt) {
return format(numberFormat.format(moneyInt));
}

public String format(long moneyLong) {
return format(numberFormat.format(moneyLong));
}

public String format(Number moneyNum) {
return format(numberFormat.format(moneyNum));
}

private String convertToChineseNumber(String moneyStr) {
String result;

StringBuffer cMoneyStringBuffer = new StringBuffer();
for (int i = 0; i < moneyStr.length(); i++) {
cMoneyStringBuffer.append(chineseNumberMap.get(moneyStr.substring(i, i + 1)));
}
//拾佰仟万亿等都是汉字里面才有的单位,加上它们
int indexOfDot = cMoneyStringBuffer.indexOf(DOT);
int moneyPatternCursor = 1;
for (int i = indexOfDot – 1; i > 0; i–) {
cMoneyStringBuffer.insert(i, chineseMoneyPattern.get(EMPTY + moneyPatternCursor));
moneyPatternCursor = moneyPatternCursor == 8 ? 1 : moneyPatternCursor + 1;
}

String fractionPart = cMoneyStringBuffer.substring(cMoneyStringBuffer.indexOf(“.”));
cMoneyStringBuffer.delete(cMoneyStringBuffer.indexOf(“.”), cMoneyStringBuffer.length());
while (cMoneyStringBuffer.indexOf(“零拾”) != -1) {
cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf(“零拾”), cMoneyStringBuffer.indexOf(“零拾”) + 2, ZERO);
}
while (cMoneyStringBuffer.indexOf(“零佰”) != -1) {
cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf(“零佰”), cMoneyStringBuffer.indexOf(“零佰”) + 2, ZERO);
}
while (cMoneyStringBuffer.indexOf(“零仟”) != -1) {
cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf(“零仟”), cMoneyStringBuffer.indexOf(“零仟”) + 2, ZERO);
}
while (cMoneyStringBuffer.indexOf(“零万”) != -1) {
cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf(“零万”), cMoneyStringBuffer.indexOf(“零万”) + 2, TEN_THOUSAND);
}
while (cMoneyStringBuffer.indexOf(“零亿”) != -1) {
cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf(“零亿”), cMoneyStringBuffer.indexOf(“零亿”) + 2, HUNDRED_MILLION);
}
while (cMoneyStringBuffer.indexOf(“零零”) != -1) {
cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf(“零零”), cMoneyStringBuffer.indexOf(“零零”) + 2, ZERO);
}
if (cMoneyStringBuffer.lastIndexOf(ZERO) == cMoneyStringBuffer.length() – 1)
cMoneyStringBuffer.delete(cMoneyStringBuffer.length() – 1, cMoneyStringBuffer.length());
cMoneyStringBuffer.append(fractionPart);

result = cMoneyStringBuffer.toString();
return result;
}
private String addUnitsToChineseMoneyString(String moneyStr) {
String result;
StringBuffer cMoneyStringBuffer = new StringBuffer(moneyStr);
int indexOfDot = cMoneyStringBuffer.indexOf(DOT);
cMoneyStringBuffer.replace(indexOfDot, indexOfDot + 1, YUAN);

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