Java 中的 linkedblockingrequeiterator()方法
原文:https://www . geeksforgeeks . org/link edblockingeque-iterator-method-in-Java/
的迭代器()方法以适当的顺序返回这个序列中元素的迭代器。元素将按从第一个(头)到最后一个(尾)的顺序返回。返回的迭代器是“弱一致”迭代器。
语法:
public Iterator iterator()
参数:此方法不接受任何参数。
返回:这个方法返回一个迭代器，以适当的顺序遍历这个对象中的元素。
下面的程序说明了链接锁定请求的迭代器()方法:
程序 1:
// Java Program Demonstrate iterator()
// method of LinkedBlockingDeque
import java.util.concurrent.LinkedBlockingDeque;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// create object of LinkedBlockingDeque
LinkedBlockingDeque<Integer> LBD
= new LinkedBlockingDeque<Integer>();
// Add numbers to front of LinkedBlockingDeque
LBD.addFirst(7855642);
LBD.addFirst(35658786);
LBD.addFirst(5278367);
LBD.addFirst(74381793);
// Call iterator() method of LinkedBlockingDeque
Iterator iteratorVals = LBD.iterator();
// Print elements of iterator
// created from PriorityBlockingQueue
System.out.println("The iterator values"
+ " of LinkedBlockingDeque are:");
// prints the elements using an iterator
while (iteratorVals.hasNext()) {
System.out.println(iteratorVals.next());
}
}
}
输出:
The iterator values of LinkedBlockingDeque are:
74381793
5278367
35658786
7855642
程序二:
// Java Program Demonstrate iterator()
// method of LinkedBlockingDeque
// when list is of strings
import java.util.concurrent.LinkedBlockingDeque;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// create object of LinkedBlockingDeque
LinkedBlockingDeque<String> LBD
= new LinkedBlockingDeque<String>();
// Add numbers to front of LinkedBlockingDeque
LBD.add("Geeks");
LBD.add("forGeeks");
LBD.add("A");
LBD.add("Computer");
LBD.add("Portal");
// Call iterator() method of LinkedBlockingDeque
Iterator iteratorVals = LBD.iterator();
// Print elements of iterator
// created from PriorityBlockingQueue
System.out.println("The iterator values"
+ " of LinkedBlockingDeque are:");
// prints the elements using an iterator
while (iteratorVals.hasNext()) {
System.out.println(iteratorVals.next());
}
}
}
输出:
The iterator values of LinkedBlockingDeque are:
Geeks
forGeeks
A
Computer
Portal
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