mirror of
https://github.com/krahets/hello-algo.git
synced 2024-12-26 22:56:28 +08:00
1c0f350ad6
* Add the intial translation of code of all the languages * test * revert * Remove * Add Python and Java code for EN version
40 lines
1.1 KiB
Java
40 lines
1.1 KiB
Java
/**
|
|
* File: queue.java
|
|
* Created Time: 2022-11-25
|
|
* Author: krahets (krahets@163.com)
|
|
*/
|
|
|
|
package chapter_stack_and_queue;
|
|
|
|
import java.util.*;
|
|
|
|
public class queue {
|
|
public static void main(String[] args) {
|
|
/* Initialize queue */
|
|
Queue<Integer> queue = new LinkedList<>();
|
|
|
|
/* Element enqueue */
|
|
queue.offer(1);
|
|
queue.offer(3);
|
|
queue.offer(2);
|
|
queue.offer(5);
|
|
queue.offer(4);
|
|
System.out.println("Queue queue = " + queue);
|
|
|
|
/* Access front element */
|
|
int peek = queue.peek();
|
|
System.out.println("Front element peek = " + peek);
|
|
|
|
/* Element dequeue */
|
|
int pop = queue.poll();
|
|
System.out.println("Dequeued element = " + pop + ", after dequeuing" + queue);
|
|
|
|
/* Get the length of the queue */
|
|
int size = queue.size();
|
|
System.out.println("Length of the queue size = " + size);
|
|
|
|
/* Determine if the queue is empty */
|
|
boolean isEmpty = queue.isEmpty();
|
|
System.out.println("Is the queue empty = " + isEmpty);
|
|
}
|
|
}
|