UrbanPro
true

Learn Java Training from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Search in

JAVA - Object Cloning

Gaurav Kothari
16/02/2021 0 0

JAVA - Object Cloning

Is the way of creating the same copy of object without calling the class constructor. It means we can make any class object multiple times without calling its default constructor. Wherever we required the same object then we can go with cloneable classes as loading of the object is pretty much faster as compared to creating new objects multiple times.

Internally it uses clone() method, which is one of the ways of the object class.

We can achieve cloning by implementing any class with the Cloneable interface.

For more understanding please refer below code.

public class EmployeeCloneable implements Cloneable{

          private String name;

          private String add;

          public EmployeeCloneable(String name, String add){ //Only one time constructor cal

                    this.name = name;

                    this.add = add;

                    System.out.println("I am constructor");

          }

          public Object clone() throws CloneNotSupportedException{ 

                    return super.clone(); 

          } 

          public String getName() {

                    return name;

          }

          public void setName(String name) {

                    this.name = name;

          }

          public String getAdd() {

                    return add;

          }

          public void setAdd(String add) {

                    this.add = add;

          }

          public static void main(String[] args) throws CloneNotSupportedException {

                    EmployeeCloneable emp = new EmployeeCloneable("Test", "1");

//try to use comment line then you will be see two time constrictor call happens

                    EmployeeCloneable emp1 = (EmployeeCloneable)emp.clone();//new EmployeeCloneable("Test ", "1");

                    System.out.println(emp);

                    System.out.println(emp1);

          }

          @Override

          public String toString() {

                    return "EmployeeCloneable [name=" + name + ", add=" + add + "]";

          }

}

Output:

I am constructor

EmployeeCloneable [name=Test, add=1]

EmployeeCloneable [name=Test, add=1]

 

Please add on comments and like this lesson, if it gave you some revision or refreshment on “JAVA - Object Cloning” concepts.

0 Dislike
Follow 2

Please Enter a comment

Submit

Other Lessons for You

Priority in TestNG
public class Priority { @Test (priority=1)public void login() {System.out.println("login");} @Testpublic void email1() {System.out.println("email1");} @Test (priority=-2)public void email2() {System.out.println("email2");} //I...

Sarthak Chadha | 22/11/2021

0 0
0

Example of DependsOnMethod in TestNG
public class dependsonM { @Test public void login() { System.out.println("login"); } @Test (dependsOnMethods = {"login"}) public void email() { //Intentionally I am failing this testcase Assert.assertTrue(false);...

Sarthak Chadha | 18/11/2021

0 0
0

TestNG Annotations and its sequence
public class TestNGAnnotations { @BeforeMethod public void beforeM() { System.out.println("Before Method"); } @AfterMethod public void afterMethod() { System.out.println("After Method"); } @BeforeClass...

Sarthak Chadha | 18/11/2021

0 0
0

ListIterator Example
public class ListIteratorEx { public static void main(String args) { List<String> li = new ArrayList<String>(); li.add("java1"); li.add("java2"); li.add("java3"); li.add("java4"); ListIterator...

Sarthak Chadha | 18/11/2021

0 0
0

doWhile example in Java
public class doWhilePracticleEx { public void test() { } public static void main(String args) { String q1 = "Who is PM of India?"; String a1 = "Sonia Gandhi"; String a2 = "Rahul Gandhi"; String a3...

Sarthak Chadha | 18/11/2021

0 0
0
X

Looking for Java Training Classes?

The best tutors for Java Training Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Learn Java Training with the Best Tutors

The best Tutors for Java Training Classes are on UrbanPro

Book a Free Demo

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more