Java IntStream asDoubleStream()

IntStream asDoubleStream() 返回一个由这个流的元素组成的 DoubleStream ，并转换为双数。这是一个 中间操作， 中间操作是在一个Stream实例上调用的，在它们完成处理后，会给出一个Stream实例作为输出。

语法:

DoubleStream asDoubleStream()

其中，DoubleStream是一连串的
原始的双值元素。
返回值 : IntStream asDoubleStream() 返回一个由该流元素组成的
由这个流的元素组成的DoubleStream。
转换为双数。

例1 :

// Java code for DoubleStream asDoubleStream()// to return a DoubleStream consisting of// the elements of this streamimport java.util.*;import java.util.stream.IntStream;import java.util.stream.DoubleStream;  class GFG {      // Driver code    public static void main(String[] args)    {        // Creating an IntStream        IntStream stream = IntStream.of(3, 5, 9, 12, 14);          // Using DoubleStream asDoubleStream()        DoubleStream stream1 = stream.asDoubleStream();          // Displaying DoubleStream consisting of        // the elements of this stream        stream1.forEach(System.out::println);    }}

输出:

3.05.09.012.014.0

例2 :

// Java code for DoubleStream asDoubleStream()// to return a DoubleStream consisting of// the elements of this streamimport java.util.*;import java.util.stream.IntStream;import java.util.stream.DoubleStream;  class GFG {      // Driver code    public static void main(String[] args)    {        // Creating an IntStream and using asDoubleStream()        DoubleStream stream = IntStream.range(3, 8).asDoubleStream();          // Displaying DoubleStream consisting of        // the elements of this stream        stream.forEach(System.out::println);    }}

输出:

3.04.05.06.07.0

例3 :

// Java code for DoubleStream asDoubleStream()// to return a DoubleStream consisting of// the elements of this streamimport java.util.*;import java.util.stream.IntStream;import java.util.stream.DoubleStream;  class GFG {      // Driver code    public static void main(String[] args)    {        // Creating an IntStream and using asDoubleStream()        // to display the elements of IntStream and        // DoubleStream together        DoubleStream stream = IntStream.range(3, 8)                                  .peek(System.out::println)                                  .asDoubleStream();          // Displaying DoubleStream consisting of        // the elements of this stream        stream.forEach(System.out::println);    }}

输出:

33.044.055.066.077.0