【JAVASE小新】增强for循环和iterator迭代器的区别和使用（含例子）

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package Gather.CollectionArrayList;

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

/**
 * @author 小王宝友
 * @date2022/2/2515:45
 * 练习一
 */
public class Test {
    public static void main(String[] args) {
        @SuppressWarnings({"all"})

        List list = new ArrayList();

        System.out.println("=====增强for循环遍历=====");
        list.add(new Dog("金毛",1));
        list.add(new Dog("边牧",2));
        list.add(new Dog("哈士奇",1));
        for (Object dog: list) {
            System.out.println("Dog="+dog);

        }
        System.out.println("=====使用迭代器遍历=====");
        Iterator iterator = list.iterator();
        while (iterator.hasNext()) {
            Object dog =  iterator.next();
            System.out.println("Dog="+dog);
        }


    }

}
class Dog{
    private String name;
    private int age;

    public Dog(String name, int age) {
        this.name = name;
        this.age = age;
    }

    public String getName() {
        return name;
    }

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

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    @Override
    public String toString() {
        return "Dog{" +
                "name='" + name + ''' +
                ", age=" + age +
                '}';
    }
}