LongStream parallel()是java.util.stream.LongStream中的方法。此方法返回并行的LongStream,即,它可能返回自身,这是因为流已经存在,或者是因为基础流状态被修改为并行。
LongStream parallel()是中间操作。这些操作总是很懒。在Stream实例上调用中间操作,并在完成处理后将中间实例作为输出提供。
用法:
LongStream parallel() Where, LongStream is a sequence of primitive long-valued elements and the function returns a parallel LongStream.
下面给出一些示例,以更好地理解该函数。
示例1:
// Java program to demonstrate working of
// LongStream parallel() on a given range
import java.util.*;
import java.util.stream.LongStream;
class GFG {
// Driver code
public static void main(String[] args)
{
// Creating a stream of longs
LongStream stream = LongStream.range(5L, 12L);
System.out.println("The corresponding "
+ "parallel LongStream is :");
stream.parallel().forEach(System.out::println);
}
}
输出:
The corresponding parallel LongStream is : 9 8 11 10 6 5 7
示例2:
// Printing sequential stream for the
// same input as above example 1.
import java.util.*;
import java.util.stream.LongStream;
class GFG {
// Driver code
public static void main(String[] args)
{
LongStream stream = LongStream.range(5L, 12L);
System.out.println("The corresponding "
+ "sequential LongStream is :");
stream.sequential().forEach(System.out::println);
}
}
输出:
The corresponding sequential LongStream is : 5 6 7 8 9 10 11
示例3:
// Java program to show sorted output
// of parallel stream.
import java.util.*;
import java.util.stream.LongStream;
class GFG {
// Driver code
public static void main(String[] args)
{
// Creating a stream of longs
LongStream stream = LongStream.of(3L, 4L, 1L, 5L,
2L, 3L, 9L);
System.out.println("The sorted parallel"
+ " LongStream is :");
stream.parallel().sorted().forEach(System.out::println);
}
}
输出:
The sorted parallel LongStream is : 4 2 3 9 3 5 1
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注:本文由纯净天空筛选整理自Sahil_Bansall大神的英文原创作品 LongStream parallel() in Java。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。