public long toString()

// Java program to demonstrate
// the above method
  
import java.util.*;
  
public class IntSummaryStatisticsDemo {
    public static void main(String[] args)
    {
  
        IntSummaryStatistics intSummaryStatistics
            = new IntSummaryStatistics();
  
        List<Integer> list
            = Arrays.asList(10, 20, 30, 40, 50);
  
        Iterator<Integer> iterator
            = list.listIterator();
        while (iterator.hasNext()) {
  
            // Add the integers to the IntSummaryStatistics object
            intSummaryStatistics.accept(iterator.next());
        }
  
        System.out.println("The String representation of values is \n"
                           + intSummaryStatistics.toString());
    }
}

The String representation of values is IntSummaryStatistics
{count=5, sum=150, min=10, average=30.000000, max=50}