How can I copy existing class object to other class new class object without creating copy of original object(in memory) in Java

Question

Please advise. I think AObj will have only one copy unless we add any changes or update the originally created object within new object. Not sure, please help.

 public class AObject { private String a; Private String b; public String getA() { return a; } public void setA(String a) { this.a = a; } public String getB() { return b; } public void setB(String b) { this.b = b; } } } public class BObject{ private AObject aObj; public AObject getAObj() { return aObj; } public void setAObj(AObject aObj) { this.aObj = aObj; } } public static void main(String[] args){ AObject aObj = new AObject(); aObj.setA("testA"); aObj.setB("testB"); BObject bObj = new BObject(); bObj.setAObj(aObj) //here I would like to avoid creating the deep copy of objects. }

Answer 1

You do not copy the object. Your code does what you want.

(It is pretty difficult to accidentally copy something in Java.)