数字大小写转化

//日期转化为大小写
public static String dataToUpper(String dateStr) {
String res="";
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
Date date = null;
try {
date = df.parse(dateStr);
} catch (Exception e) {
// 日期型字符串格式错误
System.out.println("日期型字符串格式错误");
}
if(date!=null){
Calendar ca = Calendar.getInstance();
ca.setTime(date);
int year = ca.get(Calendar.YEAR);
int month = ca.get(Calendar.MONTH) + 1;
int day = ca.get(Calendar.DAY_OF_MONTH);
res=numToUpper(year) + "年" + monthToUppder(month) + "月"+dayToUppder(day) + "日";
}
return res;
}

// 将数字转化为大写
public static String numToUpper(int num) {
// String u[] = {"零","壹","贰","叁","肆","伍","陆","柒","捌","玖"};
String u[] = { "〇", "一", "二", "三", "四", "五", "六", "七", "八", "九" };
char[] str = String.valueOf(num).toCharArray();
String rstr = "";
for (int i = 0; i < str.length; i++) {
rstr = rstr + u[Integer.parseInt(str[i] + "")];
}
return rstr;
}

// 月转化为大写
public static String monthToUppder(int month) {
if (month < 10) {
return numToUpper(month);
} else if (month == 10) {
return "十";
} else {
return "十" + numToUpper(month - 10);
}
}

// 日转化为大写
public static String dayToUppder(int day) {
if (day < 20) {
return monthToUppder(day);
} else {
char[] str = String.valueOf(day).toCharArray();
if (str[1] == ‘0‘) {
return numToUpper(Integer.parseInt(str[0] + "")) + "十";
} else {
return numToUpper(Integer.parseInt(str[0] + "")) + "十"
+ numToUpper(Integer.parseInt(str[1] + ""));
}
}
}