人民幣小寫轉換為大寫

將人民幣的小寫形式轉換為大寫，例如：呼叫upper("18.5")，將會返回字串“壹拾捌圓伍角”。

import org.junit.Test;


/**
 * 測試人民幣小寫轉大寫
 * @author zhengzhb
 */
public class UpperMoney {
public String upper(String money) throws Exception{
if(!money.matches("^[1-9]+[0-9]*$|^[1-9]+[0-9]*.[0-9]+$" )){
throw new Exception("錢數格式錯誤！");
}
String[] part= money.split("\\.");
StringBuffer integer = new StringBuffer();
for(int i=0;i<part[0].length();i++){
char perchar = part[0].charAt(i);
integer.append(this.upperNumber(perchar));
integer.append(this.upperNumber(part[0].length()-i-1));
}

StringBuffer decimal = new StringBuffer();
if(part.length>1 && !"00".equals(part[1])){
int length = part[1].length()>=2?2:part[1].length();
for(int i=0;i<length;i++){
char perchar = part[1].charAt(i);
decimal.append(this.upperNumber(perchar));
if(i==0)decimal.append('角');
if(i==1)decimal.append('分');
}
}
String result = integer.toString()+decimal.toString();
return this.dispose(result);
}


private char upperNumber(char number){
switch(number){
case '0': return '零';
case '1': return '壹';
case '2': return '貳';
case '3': return '叄';
case '4': return '肆';
case '5': return '伍';
case '6': return '陸';
case '7': return '柒';
case '8': return '捌';
case '9': return '玖';
}
return 0;
}

private char upperNumber(int index){


switch(index){
case 0: return '圓';
case 1: return '拾';
case 2: return '佰';
case 3: return '仟';
case 4: return '萬';
case 5: return '拾';
case 6: return '佰';
case 7: return '仟';
case 8: return '億';
case 9: return '拾';
case 10: return '佰';
case 11: return '仟';
}
return 0;
}


private String dispose(String result){
result = result.replaceAll("零仟零佰零拾|零仟零佰|零佰零拾|零仟|零佰|零拾", "零")
.replaceAll("零+", "零").replace("零億", "億");
result = result.matches("^.*億零萬[^零]仟.*$" )?result.replace("零萬", "零")
:result.replace("零萬", "萬");
result = result.replace("億萬", "億").replace("零圓", "圓").replace("零分", "")
.replaceAll("圓零角零分|圓零角$|圓$" , "圓整");
return result;
}


@Test
public void test(){
try {
Assert.assertEquals(upper("1"), "壹圓整");
Assert.assertEquals(upper("10"), "壹拾圓整");
Assert.assertEquals(upper("20.7"), "貳拾圓柒角");
Assert.assertEquals(upper("10.70"), "壹拾圓柒角");
Assert.assertEquals(upper("18.5"), "壹拾捌圓伍角");
Assert.assertEquals(upper("200.5"), "貳佰圓伍角");
Assert.assertEquals(upper("2000"), "貳仟圓整");
Assert.assertEquals(upper("50000"), "伍萬圓整");
Assert.assertEquals(upper("500000"), "伍拾萬圓整");
Assert.assertEquals(upper("5000000"), "伍佰萬圓整");
Assert.assertEquals(upper("50000000"), "伍仟萬圓整");
Assert.assertEquals(upper("500000000"), "伍億圓整");
Assert.assertEquals(upper("5000000000"), "伍拾億圓整");


Assert.assertEquals(upper("5000000001"), "伍拾億零壹圓整");
Assert.assertEquals(upper("5000000021"), "伍拾億零貳拾壹圓整");
Assert.assertEquals(upper("5000000421"), "伍拾億零肆佰貳拾壹圓整");
Assert.assertEquals(upper("5000005421"), "伍拾億零伍仟肆佰貳拾壹圓整");
Assert.assertEquals(upper("5000035421"), "伍拾億零叄萬伍仟肆佰貳拾壹圓整");
Assert.assertEquals(upper("5000635421"), "伍拾億零陸拾叄萬伍仟肆佰貳拾壹圓整");
Assert.assertEquals(upper("5004635421"), "伍拾億零肆佰陸拾叄萬伍仟肆佰貳拾壹圓整");
Assert.assertEquals(upper("5024635421"), "伍拾億貳仟肆佰陸拾叄萬伍仟肆佰貳拾壹圓整");
Assert.assertEquals(upper("5224635421"), "伍拾貳億貳仟肆佰陸拾叄萬伍仟肆佰貳拾壹圓整");


Assert.assertEquals(upper("15224635421"), "壹佰伍拾貳億貳仟肆佰陸拾叄萬伍仟肆佰貳拾壹圓整");
Assert.assertEquals(upper("215224635421"), "貳仟壹佰伍拾貳億貳仟肆佰陸拾叄萬伍仟肆佰貳拾壹圓整");


Assert.assertEquals(upper("500021"), "伍拾萬零貳拾壹圓整");
Assert.assertEquals(upper("5000821"), "伍佰萬零捌佰貳拾壹圓整");
Assert.assertEquals(upper("5050006501"), "伍拾億伍仟萬陸仟伍佰零壹圓整");
Assert.assertEquals(upper("550300001"), "伍億伍仟零叄拾萬零壹圓整");

} catch (Exception e) {
e.printStackTrace();
}
}
}