LongSummaryStatistics in Java8

2014, May 22 One min read

Java Streams are a powerful tool to get rid of boilerplate code. One has never computed the min, max, average and count on a list of longs?

Here’s a way to do it with LongSummaryStatistics

LongSummaryStatistics stats = persons.stream().mapToLong(Person::getAge).summaryStatistics();

System.out.println(stats.getCount());
System.out.println(stats.getAverage());
System.out.println(stats.getMin());
System.out.println(stats.getMax());