LongStream distinct()是java.util.stream.LongStream中的方法。此方法返回由不同元素組成的流。這是有狀態的中間操作,即,在處理新元素時,它可以合並先前看到的元素的狀態。
用法:
LongStream distinct()
Where, LongStream is a sequence of
primitive long-valued elements.
下麵給出一些示例,以更好地理解該函數。
示例1:打印長流的不同元素。
// Java code for LongStream distinct()
import java.util.*;
import java.util.stream.LongStream;
class GFG {
// Driver code
public static void main(String[] args)
{
// creating a stream
LongStream stream = LongStream.of(2L, 3L,
3L, 5L, 6L, 6L, 8L);
// Displaying only distinct elements
// using the distinct() method
stream.distinct().forEach(System.out::println);
}
}
輸出:
2 3 5 6 8
示例2:計算流中不同元素的值。
// Java code for LongStream distinct() method
// to count the number of distinct
// elements in given stream
import java.util.*;
import java.util.stream.LongStream;
class GFG {
// Driver code
public static void main(String[] args)
{
// creating a stream
LongStream stream = LongStream.of(2L, 3L, 3L,
5L, 6L, 6L, 8L);
// storing the count of distinct elements
// in a variable named total
long total = stream.distinct().count();
// displaying the total number of elements
System.out.println(total);
}
}
輸出:
5
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注:本文由純淨天空篩選整理自Sahil_Bansall大神的英文原創作品 LongStream distinct() in Java with examples。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。