在arrayList中添加对象

import java.util.ArrayList;

public class Main {
    public static void main(String[] args) {
        // 创建一个ArrayList对象
        ArrayList<Person> personList = new ArrayList<>();

        // 创建一个Person对象
        Person person = new Person("John", 25);

        // 向ArrayList中添加Person对象
        personList.add(person);

        // 打印ArrayList中的对象
        for (Person p : personList) {
            System.out.println(p.getName() + " - " + p.getAge());
        }
    }
}

class Person {
    private String name;
    private int age;

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

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }
}