***Data structures and algorithms using Java***
Two objects, objectA and objectB, are objects in the class Listing. The object objectA is copied to objectB. Give the signature of a method named deepCopy, that clones an object in the class Listing sent to it as a parameter and returns a reference to the clone and give the Java invocation to clone the object objectA and store a reference to the clone in the variable: newListing.
public class Listing {
private String name;
public Listing(){
}
public Listing(String name){
this.name=name;
}
public Listing deepCopy() {
Listing newListing=new Listing(name); // deep copying
return newListing;
}
public static void main(String[] args) {
Listing objectA=new Listing();
Listing objectB=new Listing();
// shallow copying
objectA.name=”Bob”;
objectB=objectA;
System.out.println(objectB.name);
//deep copying
objectA.name=”John”;
objectB=objectA.deepCopy();
System.out.println(objectB.name);
}
}
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