我是否需要在java中使用javadoc每个方法或只是'main'方法？

/**
 * This is a class to represent a person.
 */
public class Person {
    /**
     * The name of the person.
     */
    private String name;

    /**
     * The age of the person.
     */
    private int age;

    /**
     * Constructor for the Person class.
     *
     * @param name The name of the person.
     * @param age  The age of the person.
     */
    public Person(String name, int age) {
        this.name = name;
        this.age = age;
    }

    /**
     * Get the name of the person.
     *
     * @return The name of the person.
     */
    public String getName() {
        return name;
    }

    /**
     * Set the name of the person.
     *
     * @param name The name of the person.
     */
    public void setName(String name) {
        this.name = name;
    }

    /**
     * Get the age of the person.
     *
     * @return The age of the person.
     */
    public int getAge() {
        return age;
    }

    /**
     * Set the age of the person.
     *
     * @param age The age of the person.
     */
    public void setAge(int age) {
        this.age = age;
    }
}