Select the correct answerWhich of these method of Object class can clone an object?Optionscopy()Objectcopy()Object clone()clone()

t answerWhich of these method of Object class can clone an object?

Assume class DEMO. Which of the following statement(s) responsible to invoke copy constructor?1. DEMO D2(D1); // Here D1 is an already created object of class DEMO2. D2 = D1; // Here D1, D2 are already created objects of class DEMOThis problem has only one correct answerOnly 1Only 2Both 1 and 2

public class Person{             int age;             String name;             public Person(String n, int a){                 age = a;                 name = n;             }             public String toString(){                 return (name+ ":" + age );             }         }         public class Employee extends Person implements Cloneable {             public Employee(String n, int a){                 super(n, a);             }             public Employee clone()throws CloneNotSupportedException{                 return (Employee)super.clone();              }         }         public class Test {             public static void main(String[] args) {                 Employee[] e1 = {new Employee("Hari",30), new Employee("geeta",23)};                 Employee[] e2 = e1.clone();                 e2[1].name = "rani";                 System.out.println(e1[1] + ", " + e2[1]);              }          }

Which of the following methods is used to copy elements from one ArrayList to another?Question 2Answera.Collections.copy()b.duplicate()c.clone()d.copy()

When a copy constructor may be called?Option 1When an object is constructed based on another object of the same classOption 2When an object of the class is passed (to a function) by value as an argument.Option 3When compiler generates a temporary object.Option 4All of these