帮我写一个用java实现根据出生日期计算年龄并进行pojo封装

好的，以下是代码实现：

import java.time.LocalDate;
import java.time.Period;

public class AgeCalculator {
    private int age;
    private LocalDate birthDate;
    
    public AgeCalculator(LocalDate birthDate) {
        this.birthDate = birthDate;
        this.age = calculateAge();
    }
    
    private int calculateAge() {
        LocalDate currentDate = LocalDate.now();
        return Period.between(birthDate, currentDate).getYears();
    }
    
    // Getters and setters
    public int getAge() {
        return age;
    }
    
    public void setAge(int age) {
        this.age = age;
    }
    
    public LocalDate getBirthDate() {
        return birthDate;
    }
    
    public void setBirthDate(LocalDate birthDate) {
        this.birthDate = birthDate;
    }
}

使用示例：

import java.time.LocalDate;

public class Main {
    public static void main(String[] args) {
        LocalDate birthDate = LocalDate.of(2000, 10, 10);
        AgeCalculator ageCalculator = new AgeCalculator(birthDate);
        System.out.println(ageCalculator.getAge()); // 输出：21
    }
}

以上就是根据出生日期计算年龄并进行pojo封装的Java实现。