一些格式的Java工具類

    public class FormatTools {

        /**


     * 判斷郵箱 
     *  
     * @param email 
     * @return 
     */  
    public static boolean isEmail(String email) {  
        String str = "^([a-zA-Z0-9_\\-\\.]+)@((\\[[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.)|(([a-zA-Z0-9\\-]+\\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\\]?)$";  
        Pattern p = Pattern.compile(str);  
        Matcher m = p.matcher(email);  

        return m.matches();  
    }  

    // 判斷手機號  
    public static boolean IsPhoneNum(String mobiles) {  
        if (mobiles.trim().length() == 11) {  
            Pattern p = Pattern  
                    .compile("^((13[0-9])|(15[^4,\\D])|(18[0,2,5-9]))\\d{8}$");  
            Matcher m = p.matcher(mobiles);  
            Log.d("IsPhoneNum", m.matches() + "");  
            return m.matches();  
        }  
        return false;  

    }  

    // 判斷座機  
    public static boolean IsCallNum(String mobiles) {  
        boolean isValid = false;  
        CharSequence inputStr = mobiles;  
        Pattern pattern = Pattern.compile("^(0\\d{2,3})(\\d{7,8})(\\d{3,})?$");  
        Matcher matcher = pattern.matcher(inputStr);  
        if (matcher.matches()) {  
            isValid = true;  
        }  
        return isValid;  
    }  

    // 判斷手機或座機  
    public static boolean IsAllCallNum(String mobiles) {  
        boolean isValid = false;  
        String expression = "(^((13[0-9])|(15[^4,\\D])|(18[0,2,5-9]))\\d{8}$)|"  
                + "(^(0\\d{2,3})(\\d{7,8})(\\d{3,})?$)";  
        CharSequence inputStr = mobiles;  
        Pattern pattern = Pattern.compile(expression);  
        Matcher matcher = pattern.matcher(inputStr);  
        if (matcher.matches()) {  
            isValid = true;  
        }  
        return isValid;  
    }  

    // 判斷字符串是數字  
    public static boolean isNumeric(String str) {  
        for (int i = 0; i < str.length(); i++) {  
            // System.out.println(str.charAt(i));  
            if (!Character.isDigit(str.charAt(i))) {  
                return false;  
            }  
        }  
        return true;  
    }  

    /** 
     * 判斷是否為整數 
     *  
     * @param str 傳入的字符串 
     *  
     * @return 是整數返回true,否則返回false 
     */  

    public static boolean isInteger(String str) {  
        Pattern pattern = Pattern.compile("^[-\\+]?[\\d]*$");  
        return pattern.matcher(str).matches();  
    }  

    /** 
     * 判斷是否符合密碼規則 
     *  6-16為字母數字集合 不包含非法字符 
     * @param str 
     * @return 
     */  
    public static boolean isPwd(String str) {  
        Pattern pattern = Pattern.compile("^[a-z0-9A-Z]+$");  
        return pattern.matcher(str).matches();  
    }  

    /** 
     * 將秒轉換成小時分鐘 
     *  
     * @param second 
     * @return 
     */  
    public static String changeTotime(int second) {  
        int h = 0;  
        int d = 0;  
        int s = 0;  
        int temp = second % 3600;  
        if (second > 3600) {  
            h = second / 3600;  
            if (temp != 0) {  
                if (temp > 60) {  
                    d = temp / 60;  
                    if (temp % 60 != 0) {  
                        s = temp % 60;  
                    }  
                } else {  
                    s = temp;  
                }  
            }  
        } else {  
            d = second / 60;  
            if (second % 60 != 0) {  
                s = second % 60;  
            }  
        }  

        // return h + "小時" + d + "分鐘" + s + "秒";  
        return h + "小時" + d + "分鐘";  
    }  

    /** 
     * 米轉換成公里 
     *  
     * @return 
     */  
    public static String miToGl(int distance) {  
        double dis = Math.round(distance / 100d) / 10d;  
        return dis + "公里";  
    }  
}  </pre>