Java 中()的双流
双流(双 t)
DoubleStream of(double t) 返回包含单个元素的顺序 DoubleStream。 语法:
static DoubleStream of(double t)
参数:
- 双流:原始双值元素的序列。
- t : 代表双流中的单个元素。
返回值: DoubleStream of(double t)返回包含单个指定元素的连续 DoubleStream。
示例:
// Java code for DoubleStream of(double t)
// to get a sequential DoubleStream
// containing a single element.
import java.util.*;
import java.util.stream.DoubleStream;
class GFG {
// Driver code
public static void main(String[] args)
{
// Creating a DoubleStream having single
// element only
DoubleStream stream = DoubleStream.of(8.2);
// Displaying the DoubleStream having
// single element
stream.forEach(System.out::println);
}
}
输出:
8.2
双(双…值)流
double stream of(double…values)返回元素为指定值的顺序有序流。 语法:
static DoubleStream of(double... values)
参数:
- 双流:原始双值元素的序列。
- 值:表示新流的元素。
返回值:double stream of(double…values)返回一个顺序的有序流，其元素是指定的值。
例 1 :
// Java code for DoubleStream of(double... values)
// to get a sequential ordered stream whose
// elements are the specified values.
import java.util.*;
import java.util.stream.DoubleStream;
class GFG {
// Driver code
public static void main(String[] args)
{
// Creating an DoubleStream
DoubleStream stream = DoubleStream.of(8.2, 5.6, 4.1);
// Displaying the sequential ordered stream
stream.forEach(System.out::println);
}
}
输出:
8.2
5.6
4.1
例 2 :
// Java code for DoubleStream of(double... values)
// to get a sequential ordered stream whose
// elements are the specified values.
import java.util.*;
import java.util.stream.DoubleStream;
class GFG {
// Driver code
public static void main(String[] args)
{
// Creating an DoubleStream
DoubleStream stream = DoubleStream.of(5.2, 4.2, 6.3);
// Storing the count of elements in DoubleStream
long total = stream.count();
// Displaying the count of elements
System.out.println(total);
}
}
输出:
3
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