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import java.util.DoubleSummaryStatistics;
import java.util.stream.DoubleStream;
public class SummarizingDemo {
public static void main(String[] args) {
DoubleSummaryStatistics stats = DoubleStream.generate(Math::random)
.limit(1_000_000)
.summaryStatistics();
System.out.println(stats);
System.out.println(stats.getCount());
System.out.println(stats.getMin());
System.out.println(stats.getAverage());
System.out.println(stats.getMax());
System.out.println(stats.getSum());
}
}