How to Compare two Dates

This example code uses the Calendar class to compare two dates.

Code:

---

import java.util.*;
import java.text.*;

public class DemoDate {
  public static void main(String args[]){
    DemoDate a = new DemoDate();
    }

  DemoDate() {

    String DATE_FORMAT = "yyyy-MM-dd";
    java.text.SimpleDateFormat sdf =
          new java.text.SimpleDateFormat(DATE_FORMAT);
    Calendar calender1 = Calendar.getInstance();
   
    Calendar calendar2 = Calendar.getInstance();
    calender1.set(2006, 04 , 28);
    calendar2.set(2006, 04 , 28);
   
    System.out.print(sdf.format(calender1.getTime()));
   
    if (calender1.before(calendar2)) {
      System.out.print(" is before ");
      }
    if (calender1.after(calendar2)) {
      System.out.print(" is after ");   
      } 
    if (calender1.equals(calendar2)) {
      System.out.print(" same as ");   
      } 
    System.out.print(sdf.format(calendar2.getTime()));
    }
  }

---

Kool,

how about gettin the diff. between

String startDate = "1/23/2008" ; // MM/DD/YYYY
String endDate = "5/20/2018" ; // MM/DD/YYYY

String startTime = "10:00 PM" ; // hh:mm a
String endTime = "1:00 AM" ; // hh:mm a

Difference b/w, startDate + startTime and endDate + endTime :)