Java tutorial
//package com.java2s; import java.util.Calendar; public class Main { public static String getCurrentDateString() { Calendar calendar = Calendar.getInstance(); return calendar.get(Calendar.YEAR) + "-" + String.format("%02d", (calendar.get(Calendar.MONTH) + 1)) + "-" + String.format("%02d", calendar.get(Calendar.DATE)); } public static String getCurrentDateString(Calendar calendar) { if (calendar == null) return ""; return calendar.get(Calendar.YEAR) + "-" + String.format("%02d", (calendar.get(Calendar.MONTH) + 1)) + "-" + String.format("%02d", calendar.get(Calendar.DATE)); } }