示例代码:
public class Person { private String name; private int age;
// getter and setter methods for name and 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; } }
// Example usage
ArrayList
Person person1 = new Person(); person1.setName("John"); person1.setAge(30);
Person person2 = new Person(); person2.setName("Mary"); person2.setAge(25);
people.add(person1); people.add(person2);
// Access attributes System.out.println(people.get(0).getName()); // "John" System.out.println(people.get(1).getAge()); // 25
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