package com.jah.collection12;
import java.util.*;
public class TestQueue {
public static void main(String[] args) {
Queue queue = new LinkedList();
queue.offer("abc");
queue.offer("cde");
queue.offer("123");
queue.offer("abc");
System.out.println(queue);
System.out.println("queue.element():"+queue.element());
System.out.println(queue);
System.out.println("queue.peek():"+queue.peek());
System.out.println(queue);
System.out.println("queue.poll():"+queue.poll());
System.out.println(queue);
System.out.println("queue.remove():"+queue.remove());
page4
System.out.println(queue);
} }
大佬们,今天老师布置的作业,学会使用List的泛型,使用泛型定义一个Queue,加入5个商品对象,上面是他打出的例子,但不是商品对象,说是用的字符串,让我们用商品类goods,大佬们这咋弄
你定义个一个Goods类,里面按老师要求给几个商品属性,比如名称,价格
然后
Queue queue = new LinkedList();
变成
Queue<Goods> queue = new LinkedList<Goods>();
后面再一个个的构建Goods实例,放入Queue
例如:
public class Goods {
private String name;
private float prise;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public float getPrise() {
return prise;
}
public void setPrise(float prise) {
this.prise = prise;
}
}
public final static void main(String[] args) throws Exception {
Queue<Goods> queue = new LinkedList<Goods>();
Goods goods1 = new Goods();
goods1.setName("商品1");
goods1.setPrise(12.5f);
queue.offer(goods1);
}