javaArrayList作业二

ArrayList作业二

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package cn.usts.edu.homework;

import java.util.ArrayList;
import java.util.Iterator;

/**
 * @author ：fly
 * @description:
 * @date ：2021/11/4 12:40
 */
public class CarDemo {

    public static void main(String[] args) {
        Car car1 = new Car("宝马", 4000000);
        Car car2 = new Car("宾利", 5000000);

        ArrayList<Car> cars = new ArrayList<>();
        cars.add(car1);
        cars.add(car2);
        System.out.println(cars);

        cars.remove(car2);// 删除
        System.out.println(cars.contains(car1));

        System.out.println(cars.size());//长度
        System.out.println(cars.isEmpty());//判断空
        cars.clear();// 清空
        System.out.println(cars);

        ArrayList<Car> cars1 = new ArrayList<>();
        cars1.add(new Car("大众",150000));
        cars1.add(new Car("法拉利",150000));
        cars.addAll(cars1);// 添加多个
        cars.addAll(cars1);
        System.out.println(cars);

        cars.add(car1);
        System.out.println(cars);

        System.out.println(cars.containsAll(cars1));// 包含多个

        //cars.removeAll(cars1);// 删除列表中的所有
        //System.out.println(cars);

        // for遍历
        System.out.println("=================for遍历=============");
        for (Car car : cars) {
            System.out.println(car);
        }

        
        System.out.println("=================迭代器遍历=============");
        // 迭代器遍历
        Iterator<Car> iterator = cars.iterator();
        while (iterator.hasNext()){
            System.out.println(iterator.next());
        }

    }
}

class Car{
    private String name;
    private double price;

    public Car() {
    }

    public Car(String name, double price) {
        this.name = name;
        this.price = price;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public double getPrice() {
        return price;
    }

    public void setPrice(double price) {
        this.price = price;
    }

    @Override
    public String toString() {
        return "Car{" +
                "name='" + name + '\'' +
                ", price=" + price +
                '}';
    }
}

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