/******************************** * * @author Ravinder Singh* * * this program can calculate you age in years,months days,hours,minutes and even in seconds. *just enter your date of birth in any of these formats "dd/MM/yyyy", "dd:MM:yyyy","dd-MM-yyyy", "dd/MM/yyyy-hh:mm:ss", "dd:MM:yyyy-hh:mm:ss", "dd-MM-yyyy-hh:mm:ss" in a single line and that's all enjoy 😋😋 *********************************/ import java.util.Scanner; import java.text.SimpleDateFormat; import java.text.DateFormat; import java.text.ParseException; import java.util.Date; public class AgeCalculator{ static int d=0,day,month; static void monthCalculator(int x,Date cDate){ if((x<=31)&&(x>=0) ){ d=day; month =0; } else if((x<=59)&&(x>31)) { d = day-31; month =1; } else if((x<=90)&&(x>=60)) { if((cDate.getYear()-100)%4==0){d =d-60;} else{d=day-59;} month =2; } else if((x<=120)&&(x>90)) { d=day-90; month =3; } else if((x<=151)&&(x>120)) {d=day-120; month =4; } else if((x<=181)&&(x>151) ) {d=day-151; month =5; } else if((x<=212)&&(x>181)) { d=day-181; month =6; } else if((x<=243)&&(x>212)) { d=day-212; month =7; } else if((x<=273)&&(x>243)) { d= day-243; month =8; } else if((x<=304)&&(x>273)) { d=day-273; month = 9; System.out.println(d); } else if((x<=334)&&(x>304)) { d=day-304; month =10; } else { d=day-334; month = 11;} } public static void main(String []args) {Date iDate =new Date(); Scanner xx = new Scanner(System.in); String InputDate = xx.next(); xx.close(); String [] arr = {"dd/MM/yyyy","dd:MM:yyyy","dd-MM-yyyy","dd/MM/yyyy-hh:mm:ss","dd:MM:yyyy-hh:mm:ss","dd-MM-yyyy-hh:mm:ss"}; int t = 0; for(String s:arr){ try{ iDate =(new SimpleDateFormat(s)).parse(InputDate);} catch(ParseException e) {t++; if(t==arr.length){ System.out.println("An error ocurred"); System.out.println("possible solutions :" +'\n'+ "1>Enter the complete date. " +'\n'+ "2>Check for the errors in date format." ); } }} Date cDate = new Date(); long x = cDate.getTime()-iDate.getTime(); int z =(int)(x/(86400000)); int y = (int)(z/365.25); day = z%365; if(y>4) { int i = (int)(y/4); day = day-i; if(day<0) { y= y-1; day=day+365; } } monthCalculator(day,cDate); if(z>0){ System.out.println("you are " +y+ " years " + month+ " months and " +d+ " days old."); System.out.println("In months you are "+ (y*12+month) + " months and "+d+" days old"); System.out.println("In weeks you are "+ (int)(x/(7*24*3600000))+" weeks and "+(x/(24*3600000))%7+ " days old"); System.out.println("In Days you are " + x/(24*3600000) + " days old."); System.out.println("In Hours you are "+x/3600000+ " hours old."); System.out.println("in Minutes you are " + x/60000+ " minutes old"); System.out.println("in Seconds you are " + x + " seconds old"); } } }

Your_Age.java