1. The document summarizes a work sheet for an Advanced Internet Programming Lab assignment completed by student Shubham Roy. 2. The assignment involved two programming tasks - creating a class to store employee information using inheritance and polymorphism, and inserting a string into another string. 3. The document includes the full code solutions to both programming problems and the output when the code is run.

1. Final Work sheet
Student Name: Shubham Roy UID: 21MCA2028
Branch: MCA Section/Group: 21MCA-6_A
Semester: 2nd
sem Date of Performance: 20/05/22
Subject Name: Advanced Internet Programming Lab Subject Code: 21CAP-655
1. Aim/Overview of the practical:
2. Task to be done:
1. WAP to create a class employee and store information of n number of
employees of different departments. Use the concept of inheritance and
polymorphism.
2. WAP to insert a string into another string.
3. Steps for experiment/practical:
Code: 1st
problem
class employe
{
protected int emp_no;
protected String name;
protected int salary;

2. public
employe(int empno,String nam,int sal)
{
emp_no=empno;
name=nam;
salary=sal;
}
public void emplo_data()
{
System.out.println("nEmploy no.="+emp_no);
System.out.println("Name="+name);
System.out.println("Salary="+salary);
}
}
class manager extends employe
{
int reward;
public manager(int empno,String nam,int sal,int p)
{
super(empno,nam,sal);
reward=p;
}
public void managerdata()
{
System.out.println("nEmploy no.="+emp_no);

3. System.out.println("Name="+name);
System.out.println("Salary="+salary);
System.out.println("Reward="+reward);
}
}
class scientist extends employe
{
int perks;
public scientist(int empno,String nam,int sal,int s)
{
super(empno,nam,sal);
perks=s;
}
public void scientistdata()
{
System.out.println("nEmploy no.="+emp_no);
System.out.println("Name="+name);
System.out.println("Salary="+salary);
System.out.println("Perks="+perks);
}
}
class inheritance
{
public static void main(String args[])

4. {
employe emp= new employe(1,"ABCt",30000);
emp.emplo_data();
manager man= new manager(2,"DEFt",60000,1000);
man.managerdata();
scientist scient= new scientist(3,"Higt",50000,3000);
scient.scientistdata();
}
}
Output of 1st
problem:

5. Code: 2nd
program:
import java.lang.*;
import java.util.*;
class StrInsert {
public static void main(String[] args)
{
Scanner input=new Scanner(System.in);
// Input original string
System.out.println("Enter the Original String: ");
String firStr = input.nextLine();
//Input the second string to be inserted
System.out.println("Enter the String to be Inserted: ");
String secStr = input.nextLine();
//Input the index after which the string should be inserted
System.out.println("Enter the Index: ");
int index = input.nextInt();
//New string using substring() method
String newStr = firStr.substring(0, index + 1)
+ secStr + firStr.substring(index + 1);
// Output
System.out.println("New String After Insertion: "+ newStr);
}
}

6. Output for 2nd
program: