Java中的DoubleStream peek()方法
语法如下
DoubleStream peek(DoubleConsumer action)
在这里，DoubleConsumer是一个接受单个双值参数并且不返回结果的操作。
要在Java中使用DoubleStream类，请导入以下包
import java.util.stream.DoubleStream;
以下是peek()在Java中实现DoubleStream方法的示例
示例
import java.util.*;
import java.util.stream.DoubleStream;
public class Demo {
public static void main(String[] args) {
DoubleStream doubleStream = DoubleStream.of(28.7, 35.6, 48.3, 69.8, 75.8, 80.5, 90.8);
System.out.println("Elements in the stream...");
long num = doubleStream.peek(System.out::println).count();
System.out.println("Number of elements in the stream = " + num);
}
}输出结果
Elements in the stream... 28.7 35.6 48.3 69.8 75.8 80.5 90.8 Number of elements in the stream = 7