package com;

import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * @author Gerrard
 */
public class CheckTimeHHMM {

    public static void main(String[] args) {
        boolean flg = checkTime("8:00");
        boolean flg3 = checkTime("24:00");
        boolean flg1 = checkTime("8:60");
        boolean flg2 = checkTime("25:00");
        boolean flg4 = checkTime("25:0-");
        boolean flg6 = checkTime("ss:0-");
        if (flg) {
            System.out.println("8:00是正确格式");
        }
        if (flg3) {
            System.out.println("24:00是正确格式");
        }
        if (!flg1) {
            System.out.println("8:60不是正确格式");
        }
        if (!flg2) {
            System.out.println("25:00不是正确格式");
        }
        if (!flg4) {
            System.out.println("25:0-不是正确格式");
        }
        if (!flg6) {
            System.out.println("ss:0-不是正确格式");
        }
    }

    /**
     * 校验时间格式（仅格式）
     */
    public static boolean checkHHMM(String time) {
        SimpleDateFormat dateFormat = new SimpleDateFormat("hh:mm");
         try {
             @SuppressWarnings("unused")
            Date t = dateFormat.parse(time);
         }
         catch (Exception ex) {
             return false;
         }
        return true;
    }

    /**
     * 校验时间格式HH:MM（精确）
     */
    public static boolean checkTime(String time) {
        if (checkHHMM(time)) {
            String[] temp = time.split(":");
            if ((temp[0].length() == 2 || temp[0].length() == 1) && temp[1].length() == 2) {
                int h,m;
                try {
                    h = Integer.parseInt(temp[0]);
                    m = Integer.parseInt(temp[1]);
                } catch (NumberFormatException e) {
                    return false;
                }
                if (h >= 0 && h <= 24 && m <= 60 && m >= 0) {
                    return true;
                }
            }
        }
        return false;
    }

}