Java 中的 copy onwriterarraylist spliterator()方法
原文:https://www . geesforgeks . org/copy onwriterarraylist-spliterator-method-in-Java/
copy onwriterarraylist的 spliterator() 方法以适当的顺序返回该列表中元素的 spliterator。在拆分器上操作时不需要同步。
语法:
public Spliterator spliterator()
参数:函数不接受任何参数。
返回值:函数返回列表中元素的分隔符。
以下程序说明了上述功能:
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
程序二:
// 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
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