The convert() method of TimeUnit Class is used to convert the given time duration in the given unit to this unit. Since conversion involves from larger to smaller or smaller to larger units, loss of precision and overflow can occur while using this method.
Syntax:
public long convert(long sourceDuration,
TimeUnit sourceUnit)
Parameters: This method accepts two mandatory parameters:
- sourceDuration– which is the time duration in the given sourceUnit
- sourceUnit– which is the unit of the sourceDuration argument
Return Value: This method returns the converted duration in this unit, or Long.MIN_VALUE if conversion would negatively overflow, or Long.MAX_VALUE if it would positively overflow.
Below program illustrate the implementation of TimeUnit convert() method:
Program 1: To convert Minutes to MilliSeconds
// Java program to demonstrate// convert() method of TimeUnit Class  import java.util.concurrent.*;import java.util.Date;  class GFG {    public static void main(String args[])    {        // Get time to be converted in Minutes        long timeInMinutes = 55L;          // Create a TimeUnit object        TimeUnit time = TimeUnit.MILLISECONDS;          // Convert Minutes to milliseconds        // using convert() method        System.out.println("Time " + timeInMinutes                           + " minutes in milliSeconds = "                           + time.convert(timeInMinutes,                                          TimeUnit.MINUTES));    }} |
Output:
Time 55 minutes in milliSeconds = 3300000
Program 2: To convert Seconds to Minutes
// Java program to demonstrate// convert() method of TimeUnit Class  import java.util.concurrent.*;import java.util.Date;  class GFG {    public static void main(String args[])    {        // Get time to be converted in Seconds        long timeInSec = 300L;          // Create a TimeUnit object        TimeUnit time = TimeUnit.MINUTES;          // Convert Seconds to Minutes        // using convert() method        System.out.println("Time " + timeInSec                           + " seconds in minutes = "                           + time.convert(timeInSec,                                          TimeUnit.SECONDS));    }} |
Output:
Time 300 seconds in minutes = 5
