Java 中的 concurrentlinkedequespliterator()方法，带示例

原文:https://www . geeksforgeeks . org/concurrentlinkedeque-spliterator-method-in-Java-with-examples/

concurrentlinkedeque的 spliterator() 方法返回一个 concurrentlinkedeque 元素上的 spliterator。返回的迭代器弱一致。在 Java 8 中，拆分器可以与 Streams 一起使用。分割器也可以单独和批量遍历元素。

语法:

public Spliterator spliterator()

返回:该方法在 ConcurrentLinkedDeque 中的元素上返回一个拆分器。

下面的程序说明了 ConcurrentLinkedDeque 的 spliterator()方法:

程序 1:

// Java Program to demonstrate spliterator()
// method of ConcurrentLinkedDeque

import java.util.concurrent.ConcurrentLinkedDeque;
import java.util.*;

public class GFG {
    public static void main(String[] args)
    {

        // create object of ConcurrentLinkedDeque
        ConcurrentLinkedDeque<Integer> CBD
            = new ConcurrentLinkedDeque<Integer>();

        // Add elements
        CBD.add(22);
        CBD.add(34);
        CBD.add(45);
        CBD.add(67);

        // create Spliterator of Deque
        // using spliterator() method
        Spliterator<Integer> numbers
            = CBD.spliterator();

        // getExactSize of Spliterator
        System.out.println("Size of Spliterator : "
                           + numbers.estimateSize());

        System.out.println("list of Numbers:");

        // forEachRemaining method of Spliterator
        numbers.forEachRemaining(
            (n) -> System.out.println(n));
    }
}

Output:

Size of Spliterator : 9223372036854775807
list of Numbers:
22
34
45
67

程序 2:

// Java Program to demonstrate spliterator()
// method of ConcurrentLinkedDeque

import java.util.concurrent.ConcurrentLinkedDeque;
import java.util.*;

public class GFG {
    public static void main(String[] args)
    {

        // create object of ConcurrentLinkedDeque
        ConcurrentLinkedDeque<String> CBD
            = new ConcurrentLinkedDeque<String>();

        // Add numbers to front of ConcurrentLinkedDeque
        CBD.add("Geeks");
        CBD.add("forGeeks");
        CBD.add("A");
        CBD.add("Computer");
        CBD.add("Portal");

        // create Spliterator of Deque
        // using spliterator() method
        Spliterator<String> numbers
            = CBD.spliterator();

        // getExactSize of Spliterator
        System.out.println("Size of Spliterator : "
                           + numbers.estimateSize());

        System.out.println("list of Strings:");

        // forEachRemaining method of Spliterator
        numbers.forEachRemaining(
            (n) -> System.out.println(n));
    }
}

Output:

Size of Spliterator : 9223372036854775807
list of Strings:
Geeks
forGeeks
A
Computer
Portal

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