Java中的ArrayDeque iterator()方法
Java.util.ArrayDeque.iterator() 方法用于返回 ArrayDeque 元素的迭代器。
句法:
Iterator iterate_value = Array_Deque.iterator();
参数:该方法不带任何参数。
返回值:该方法迭代双端队列的元素并返回值(迭代器)。
下面的程序说明了Java.util.ArrayDeque.iterator() 方法:
方案一:
// Java code to illustrate iterator()
import java.util.*;
public class ArrayDequeDemo {
public static void main(String args[])
{
// Creating an empty ArrayDeque
Deque de_que = new ArrayDeque();
// Use add() method to add elements into the Queue
de_que.add("Welcome");
de_que.add("To");
de_que.add("Geeks");
de_que.add("4");
de_que.add("Geeks");
// Displaying the ArrayDeque
System.out.println("ArrayDeque: " + de_que);
// Creating an iterator
Iterator value = de_que.iterator();
// Displaying the values after iterating through the Deque
System.out.println("The iterator values are: ");
while (value.hasNext()) {
System.out.println(value.next());
}
}
}
输出:
ArrayDeque: [Welcome, To, Geeks, 4, Geeks]
The iterator values are:
Welcome
To
Geeks
4
Geeks
方案二:
// Java code to illustrate iterator()
import java.util.*;
public class ArrayDequeDemo {
public static void main(String args[])
{
// Creating an empty ArrayDeque
Deque de_que = new ArrayDeque();
// Use add() method to add elements into the Queue
de_que.add(10);
de_que.add(15);
de_que.add(30);
de_que.add(20);
de_que.add(5);
// Displaying the ArrayDeque
System.out.println("ArrayDeque: " + de_que);
// Creating an iterator
Iterator value = de_que.iterator();
// Displaying the values after iterating through the Deque
System.out.println("The iterator values are: ");
while (value.hasNext()) {
System.out.println(value.next());
}
}
}
输出:
ArrayDeque: [10, 15, 30, 20, 5]
The iterator values are:
10
15
30
20
5