Format Date/Time Using System package

You can easily format date/Time using System package in java.

public class PrintDateTime

{

public static void main(String [] arg)

{

//printf is not line feed and carriage return, so you have to put a line break.

System.out.printf("Today is: %1$tm/%1$te/%1$tY", Calendar.getInstance());

System.out.print("\n");

System.out.printf("Time is: %tr", Calendar.getInstance());

System.out.print("\n");

System.out.printf("Time is: %tT", Calendar.getInstance());

}

}

Here

• t means, you want to deal with date/time.
• m means, you want month from the date.
• e means, you want day from the date.
• Y means, you want Year from the date.
• r means, you want time as 12-hour clock with AM/PM
• T means, you want time as 24-hour clock.

Output:

Today is: 08/3/2009

Time is: 09:55:45 PM

Time is: 21:55:45