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TimeUnit convert() method in Java with Examples

  • Last Updated : 15 Oct, 2018

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

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