NumUtils.java

public class NumUtils {
    public static Integer parseInt(String str, Integer def) {
        try {
            return Integer.parseInt(str);
        } catch (NumberFormatException e) {
            return def;
        }
    }

    public static Double parseDouble(String str, Double def) {
        try {
            return Double.parseDouble(str);
        } catch (NumberFormatException e) {
            return def;
        }
    }

    public static Float parseFloat(String str, Float def) {
        try {
            return Float.parseFloat(str);
        } catch (NumberFormatException e) {
            return def;
        }
    }

    public static Long parseLong(String str, Long def) {
        try {
            return Long.parseLong(str);
        } catch (NumberFormatException e) {
            return def;
        }
    }

    public static Short parseShort(String str, Short def) {
        try {
            return Short.parseShort(str);
        } catch (NumberFormatException e) {
            return def;
        }
    }

    public static Byte parseByte(String str, Byte def) {
        try {
            return Byte.parseByte(str);
        } catch (NumberFormatException e) {
            return def;
        }
    }

    public static Boolean parseBoolean(String str) {
        return str.matches("true|1|yes");
    }
}