public class NumberUtil {
    private static String[] hanArr = {"零", "一", "二", "三", "四", "五", "六", "七", "八", "九"};
    private static String[] unitArr = {"十", "百", "千", "萬", "十", "白", "千", "億", "十", "百", "千"};
/**
     * String轉成int的值， 若無法轉換，預設返回0
     */
public static int stoi(String string) {
        return 
 
stoi(string, 0);
}

    public static int stoi(String string, int defaultValue) {
        if ((string == null) || (string.equalsIgnoreCase(""))) {
            return defaultValue;
}
        int id;
        try {
            id = Integer.parseInt(string);
} catch (NumberFormatException e) {
            e.printStackTrace();
 
            return defaultValue;
}
        return id;
}

    /**
     * String轉成long的值， 若無法轉換，預設返回0
     */
public static long stol(String string) {
        return stol(string, 0);
}

    public static long stol(String string, long defaultValue) {
        if ((string == null) || (string.equalsIgnoreCase(""
 
))) {
            return defaultValue;
}
        long ret;
        try {
            ret = Long.parseLong(string);
} catch (NumberFormatException e) {
            e.printStackTrace();
            return defaultValue;
}

        return ret;
}

    /**
     * String轉成double的值， 若無法轉換，預設返回0.00
     */
public static double stod(String string) {
        return stod(string, 0.00);
}

    public static double stod(String string, double defaultValue) {
        if ((string == null) || (string.equalsIgnoreCase(""))) {
            return defaultValue;
}
        double ret;
        try {
            ret = Double.parseDouble(string);
} catch (NumberFormatException e) {
            e.printStackTrace();
            return defaultValue;
}

        return ret;
}

    /**
     * 將整數轉成中文表示
*/
public static String toChineseNum(int number) {
        String numStr = String.valueOf(number);
String result = "";
        int numLen = numStr.length();
        for (int i = 0; i < numLen; i++) {
            int num = numStr.charAt(i) - 48;
            if (i != numLen - 1 && num != 0) {
                result += hanArr[num] + unitArr[numLen - 2 - i];
                if (number >= 10 && number < 20) {
                    result = result.substring(1);
}
            } else {
                if (!(number >= 10 && number % 10 == 0)) {
                    result += hanArr[num];
}
            }
        }
        return result;
}


    /**
     * 獲取一個屬於[min, max)中的隨機數
*/
public static int random(int min, int max) {
        return new Random().nextInt(max - min) + min;
}