How to 'derefence' an object in Java - 


class dogowner {     dog dog;      dogowner(dog dog) {         this.dog = dog;     } }  class dog {     int age;      dog(int age) {         this.age = age;     } }  dogowner peter = new dogowner(new dog(2)); dog max = peter.dog; max.age = 3;  system.out.println(peter.dog.age); // 3

how can retreive max peter without max being reference dog owned peter? in other words, able set max's age 3 without peter's dog being changed.

you either have clone peter.dog, or create new instance based on it.


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