Java CopyOnWriteArrayList spliterator()方法

CopyOnWriteArrayList 的 splitator() 方法以适当的顺序返回该列表中的元素的splitator。在对分割器进行操作时，不需要进行同步。

语法

public Spliterator spliterator()

参数： 该函数不接受任何参数。

返回值： 该函数在列表中的元素上返回一个分割器。

下面的程序说明了上述函数。

程序1 :

// Java Program to illustrate the CopyOnWriteArrayList
// spliterator() method in Java
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create object of CopyOnWriteArrayList
        CopyOnWriteArrayList<Integer> ArrLis
            = new CopyOnWriteArrayList<Integer>();
  
        // Add elements
        ArrLis.add(32);
        ArrLis.add(67);
        ArrLis.add(67);
        ArrLis.add(100);
  
        // print CopyOnWriteArrayList
        System.out.println("CopyOnWriteArrayList: " + ArrLis);
  
        Spliterator<Integer> numbers = ArrLis.spliterator();
  
        // print result from Spliterator
        System.out.println("list of Numbers:");
  
        // forEachRemaining method  of Spliterator
        numbers.forEachRemaining((n) -> System.out.println(n));
    }
}

输出。

CopyOnWriteArrayList: [32, 67, 67, 100]
list of Numbers:
32
67
67
100

程序2

// Java Program to illustrate the CopyOnWriteArrayList
// spliterator() method in Java
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create object of CopyOnWriteArrayList
        CopyOnWriteArrayList<String> ArrLis
            = new CopyOnWriteArrayList<String>();
  
        // Add elements
        ArrLis.add("gopal");
        ArrLis.add("gfg");
        ArrLis.add("jgec");
        ArrLis.add("sudo");
  
        // print CopyOnWriteArrayList
        System.out.println("CopyOnWriteArrayList: " + ArrLis);
  
        Spliterator<String> numbers = ArrLis.spliterator();
  
        // print result from Spliterator
        System.out.println("list of strings:");
  
        // forEachRemaining method  of Spliterator
        numbers.forEachRemaining((n) -> System.out.println(n));
    }
}

输出。

CopyOnWriteArrayList: [gopal, gfg, jgec, sudo]
list of strings:
gopal
gfg
jgec
sudo

参考资料: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CopyOnWriteArrayList.html#spliterator-