将对象名称添加到对象内的字段

var obj = {
  name: "John",
  age: 30
};

obj.objectName = "obj";

console.log(obj);

public class Person {
  private String name;
  private int age;
  private String objectName;

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

  // Getters and setters

  public String getObjectName() {
    return objectName;
  }

  public void setObjectName(String objectName) {
    this.objectName = objectName;
  }

  // Other methods
}

public class Main {
  public static void main(String[] args) {
    Person person = new Person("John", 30);
    person.setObjectName("person");

    System.out.println(person);
  }
}