FClass21.java

import java.util.*;

class Employee
{
    String eid;
    String ename;
    String eprojects[];
    public Employee(Employee e)
        {
            this.eid = e.eid;
            this.ename = e.ename;
            this.eprojects = new String[e.eprojects.length];
            for(int i=0; i< e.eprojects.length;i++) {
            	this.eprojects[i] = e.eprojects[i];
            }
        }
    public Employee(String id, String name, String[] projects)
    {
        this.eid = id;
        this.ename = name;
        this.eprojects = projects;
    }
    public void display()
    {
        System.out.println("id:"+eid);
        System.out.println("name:"+ename);
        System.out.println("projects:");
        for(String s : eprojects){
            System.out.print(s+":");
        }
        System.out.print("\n");
    }
    public void mutator()
    {
        this.ename = "Mr "+ this.ename;
        this.eprojects[0] = null;
    }
    
}
public class FClass21
{
    public static void main(String[] args) 
    {
        Scanner s = new Scanner(System.in);
    	   String project[] = {"P001","P002","P003"};
        //Enter the id of employee
        String id = s.nextLine();
        //Enter the name of employee
        String name = s.nextLine();
        
        Employee e1 = new Employee(id,name,project);
        Employee e2 = new Employee(e1); 
        //The copy constructor must copy all the data members.
       
        e1.mutator();
        
        e2.display();
        s.close();
    }
}