/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
import java.time.*;
import java.time.format.*;
import java.time.temporal.*;
import java.util.concurrent.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
 
Instant start = Instant.now() ;
Instant stop = start.plusSeconds( TimeUnit.MINUTES.toSeconds( 7L ) ) ;
 
Duration duration = Duration.between( start , stop );
 
String outputStandard = duration.toString();
 
Duration duration2 = Duration.parse( outputStandard );  // Going the other direction, parsing string.
 
System.out.println( "Start/Stop: " + start + "/" + stop );
System.out.println( "outputStandard: " + outputStandard ); 
System.out.println( "duration2.toString(): " + duration2 ); 
 
 
	}
}

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