In this section we are discussing about the specific date using the Date class object, retrieving milliseconds from the Date object, elapsed time.

Date Example

In this section we are discussing about the specific date using the Date class object, retrieving milliseconds from the Date object, elapsed time, date contained in the Date object before and after it has change and displaying both the values on the console.

Description of program:  

In this example first we are creating the DateExample() method and inside this we are creating Date object that contains the current date and time by using the date constructor and then print it on the console. Now we are creating the two Date objects containing two different dates and print them on the console. After that we are retrieving the elapsed time of the two objects in milliseconds by using the getTime() method of the Date class and also printing it on the console. Now we are creating an object chngdate containing the current date and after that changing its value by using the setTime() method of Date class and also printing both the values on the console.

import java.util.Date;
import java.text.ParseException;
import java.text.SimpleDateFormat;
public class DateExample {

    private static void DateExample() {

        Date date = new Date();
        System.out.println("Current Date and Time is : " + date);
        System.out.println();

        System.out.println("Date object showing specific date and time");
        Date particulardate1 = new Date(24L*60L*60L*1000L);
        Date particulardate2 = new Date(0L);
        System.out.println();
        System.out.println("First Particular date : " + particulardate1);
        System.out.println("Second Particular date: " + particulardate2);
        System.out.println();       

        System.out.println("Demo of getTime() method returning milliseconds");
        System.out.println();
        Date strtime = new Date();
        System.out.println("Start Time: " + strtime);
        Date endtime = new Date();
        System.out.println("End Time is: " + endtime);
        long elapsed_time = endtime.getTime() - strtime.getTime();
        System.out.println("Elapsed Time is:" + elapsed_time + " milliseconds");
        System.out.println();

        System.out.println("Changed date object using setTime() method");
        System.out.println();
        Date chngdate = new Date();
        System.out.println("Date before change is: " + chngdate);
        chngdate.setTime(24L*60L*60L*1000L);
        System.out.println("Now the Changed date is: " + chngdate);
        System.out.println();
  }

    public static void main(String[] args) {
        System.out.println();
        DateExample();
    }

}

Here is the output:

Download of this program.