Spring Basic Example

I am providing a very basic example of Spring :-

Firstly I created a "Maven project"

Inside there is a person class person.java

package pkg;

public class Person {
    
    private String name;
    private IAnimal animal;
    
    public void setName(String name) {
        this.name = name;
    }
    public String getName() {
        return name;
    }
    public IAnimal getAnimal() {
        return animal;
    }
    public void setAnimal(IAnimal animal) {
        this.animal = animal;
    }
    public String toString() {
        return name+" has a "+animal.toString();
    }
}

the Interface IAnimal.java

package pkg;

public interface IAnimal {
    public void play();
}

the animal Dog.java

package pkg;

public class Dog implements IAnimal {
    private String name;
    public void play() {
        System.out.println("Playing with "+name);
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String toString() {
        return " Dog with name "+name;
    }

}

the animal Cat.java