Open zhijunkang opened 5 years ago
https://www.zhijunkang.com/2019/06/12/javastream-huo-qu-yuan-su-shu-liang/
获取元素数量一、使用java.util.stream.Stream 接口定义的 count()方法long count = Stream.of(3,1,4,1,5,9,2,6,5).count(); System.out.printf("T
https://www.zhijunkang.com/2019/06/12/javastream-huo-qu-yuan-su-shu-liang/
获取元素数量一、使用java.util.stream.Stream 接口定义的 count()方法long count = Stream.of(3,1,4,1,5,9,2,6,5).count(); System.out.printf("T