package ABasic.A7Method;

public class MethodReference {

public static void main(String[] args) {

Person person=new Person("name", 18, "black");

// person1还是person1，hashCode相同

Person person1=new Person("name1", 19);

System.out.println(person1.toString());

copyAttribute(person, person1);

System.out.println(person1.toString());

// person2发生了变化，hashCode不同

Person person2=new Person("name2", 20);

System.out.println(person2.toString());

person2=copyAttribute2();

System.out.println(person2);

person2=copyAttribute3();

System.out.println(person2);

}

public static void copyAttribute(Person person, Person person1){

person1.setEyeColor(person.getEyeColor());

}

public static Person copyAttribute2(){

Person person=new Person("name", 20, "red");

return person;

}

public static Person copyAttribute3(){

Person person=new Person("name", 20, "blue");

return person;

}

}