/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
import java.time.*;
 
/* 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
	{
 
    Duration d = Duration.ofHours( 1 ).plusMinutes( 30 );
    String output = d.toString();
 
    Duration d2 = Duration.parse( output );
 
    long millis = d2.toMillis();
 
    System.out.println( "output: " + output );
    System.out.println( "d2: " + d2 );
    System.out.println( "dt.toMillis(): " + millis );
 
	}
}

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