person在java中什么意思

<code class="java">public class Person {
    private String name;
    private int age;
    private String gender;
    private String occupation;

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

    public void introduce() {
        System.out.println("My name is " + name + ", I am " + age + " years old, I am a " + gender + ", and I am a " + occupation + ".");
    }

    public void talk() {
        System.out.println("Hello, how are you?");
    }

    public void work() {
        System.out.println("I am working on a project.");
    }
}</code>

<code class="java">Person john = new Person("John Doe", 30, "male", "software engineer");
john.introduce();
john.talk();
john.work();</code>

<code>My name is John Doe, I am 30 years old, I am a male, and I am a software engineer.
Hello, how are you?
I am working on a project.</code>