Java tutorial
//package com.java2s; import java.text.SimpleDateFormat; import java.util.Calendar; public class Main { public static boolean isToday(Calendar cal) { boolean ret = false; Calendar tmp = Calendar.getInstance(); SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd"); String s1 = format.format(cal.getTime()); String s2 = format.format(tmp.getTime()); if (s1.equals(s2)) { ret = true; } return ret; } public static boolean isToday(String s1) { boolean ret = false; Calendar tmp = Calendar.getInstance(); SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd"); String s2 = format.format(tmp.getTime()); if (s1.equals(s2)) { ret = true; } return ret; } }