Java 中的 PriorityBlockingQueue spliterator()方法
原文:https://www . geeksforgeeks . org/priorityblockingqueue-spliterator-method-in-Java/
优先级阻塞队列 的拆分器()方法返回一个与优先级阻塞队列相同元素的拆分器。返回的迭代器弱一致。它可以和 Java 8 中的 Streams 一起使用。此外，它还可以单独和批量遍历元素。Spliterator 是遍历元素的更好方法，因为它对元素提供了更多的控制。
语法:
public Spliterator spliterator()
返回:这个方法在 PriorityBlockingQueue 中的元素上返回一个拆分器。
下面的程序说明了 PriorityBlockingQueue 的 spliterator()方法:
示例 1: 在包含数字列表的 PriorityBlockingQueue 上演示 spliterator()方法的程序。
// Java Program Demonstrate spliterator()
// method of PriorityBlockingQueue
import java.util.concurrent.PriorityBlockingQueue;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// define capacity of PriorityBlockingQueue
int capacityOfQueue = 5;
// create object of PriorityBlockingQueue
PriorityBlockingQueue<Integer> PrioQueue
= new PriorityBlockingQueue<Integer>(capacityOfQueue);
// Add numbers to PriorityBlockingQueue
PrioQueue.put(7855642);
PrioQueue.put(35658786);
PrioQueue.put(5278367);
PrioQueue.put(74381793);
PrioQueue.put(76487590);
PrioQueue.put(87625142);
// create Spliterator of PrioQueue
// using spliterator() method
Spliterator<Integer> numbers = PrioQueue.spliterator();
// print result from Spliterator
System.out.println("list of Numbers:");
// forEachRemaining method of Spliterator
numbers.forEachRemaining((n) -> System.out.println(n));
}
}
输出:
list of Numbers:
5278367
35658786
7855642
74381793
76487590
87625142
示例 2: 在包含名称列表的 PriorityBlockingQueue 上演示 spliterator()方法的程序。
// Java Program Demonstrate spliterator()
// method of PriorityBlockingQueue
import java.util.concurrent.PriorityBlockingQueue;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// define capacity of PriorityBlockingQueue
int capacityOfQueue = 5;
// create object of PriorityBlockingQueue which contains
// name of students
PriorityBlockingQueue<String> names
= new PriorityBlockingQueue<String>(capacityOfQueue);
// Add names of students of girls college
names.add("Joyita");
names.add("Priyanka");
names.add("Joydeep");
// create Spliterator of PrioQueue
// using spliterator() method
Spliterator<String> list = names.spliterator();
// print result from Spliterator
System.out.println("list of Names:");
// forEachRemaining method of Spliterator
list.forEachRemaining((n) -> System.out.println(n));
}
}
输出:
list of Names:
Joydeep
Priyanka
Joyita
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