OOP RE Exam TEE Paper
Question 1
Question 1 a
classDiagram class Company { - name : String + getName() : String + setName(n : String) } class Department { - name : String + getName() : String + setName(n : String) } class Employee { - name : String - title : String + getName() : String + setName(n : String) + getTitle() : String + setTitle(n : String) } Company "1" *-- "1..*" Department Department "1" --> "1..*" Employee : manages Employee "1" --> "1" Department : managedBy
Solution 1
Info
This solution is one to many based approach and uses an arraylist to link the classes instead. We have interpreted the uml diagram to have literal relations so i have created lists to do that. I Have queried Dr. Ashwini Ma’am for the same status.
Question 1.java
/*
* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
* Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
*/
package com.mycompany.retee;
import java .util.ArrayList;
/**
*
* @author TJ
*/
public class Question1 {
public class Company{
String name;
ArrayList<Department> departmentList = new ArrayList<>();
public String getName()
{
return this.name;
}
public void setName(String name)
{
this.name = name;
}
public void pushDepartment(Department dept){
this.departmentList.add(dept);
}
@Override
public String toString(){
StringBuilder sb = new StringBuilder();
sb.append("Company: ").append(name).append("\n").append("Departments: \n");
for (Department d:departmentList){
sb.append(d.toString());
}
return sb.toString();
}
}
public class Department{
String name;
ArrayList<Employee> employeeList= new ArrayList<>();
public String getName()
{
return this.name;
}
public void setName(String name)
{
this.name = name;
}
public void pushEmployee(Employee employee){
this.employeeList.add(employee);
}
@Override
public String toString(){
StringBuilder sb = new StringBuilder();
sb.append("\n \n \nDepartment Name: ").append(this.name).append("\n").append("Employees: \n \n ");
for (Employee e:employeeList){
sb.append(e.toString()).append("\n");
}
return sb.toString();
}
}
public class Employee{
String name;
String title;
public String getName()
{
return this.name;
}
public void setName(String name)
{
this.name = name;
}
public String getTitle()
{
return this.title;
}
public void setTitle(String title)
{
this.title = title;
}
@Override
public String toString(){
StringBuilder sb = new StringBuilder();
sb.append("Employee: ").append(this.name).append("\n").append("Title:").append(this.title);
return sb.toString();
}
}
}/*
* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
*/
package com.mycompany.retee;
/**
*
* @author TJ
*/
public class RETEE {
public static void main(String[] args) {
Question1 q1 = new Question1();
Question1.Company google = q1.new Company();
google.setName("Google");
System.out.println(google.getName());
Question1.Department cybersec = q1.new Department();
cybersec.setName("cyberSec");
google.pushDepartment(cybersec);
Question1.Employee tj = q1.new Employee();
tj.setName("tj");
tj.setTitle("Security Engineer");
cybersec.pushEmployee(tj);
System.out.println(google.toString());
}
}Google
Company: Google
Departments:
Department Name: cyberSec
Employees:
Employee: tj
Title:Security Engineer
------------------------------------------------------------------------
BUILD SUCCESS
------------------------------------------------------------------------
Total time: 2.518 s
Finished at: 2025-04-29T10:59:26+05:Question 1 b
Implement a function that finds the number of occurrences of a specified character in the string. Write a test program that prompts the user to enter a string follöwed number of occurrences of the character in the string.
Solution
Question2.java
/*
* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
* Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
*/
package com.mycompany.retee;
import java .util.ArrayList;
/**
*
* @author TJ
*/
public class Question1 {
public class Company{
String name;
ArrayList<Department> departmentList = new ArrayList<>();
public String getName()
{
return this.name;
}
public void setName(String name)
{
this.name = name;
}
public void pushDepartment(Department dept){
this.departmentList.add(dept);
}
@Override
public String toString(){
StringBuilder sb = new StringBuilder();
sb.append("Company: ").append(name).append("\n").append("Departments: \n");
for (Department d:departmentList){
sb.append(d.toString());
}
return sb.toString();
}
}
public class Department{
String name;
ArrayList<Employee> employeeList= new ArrayList<>();
public String getName()
{
return this.name;
}
public void setName(String name)
{
this.name = name;
}
public void pushEmployee(Employee employee){
this.employeeList.add(employee);
}
@Override
public String toString(){
StringBuilder sb = new StringBuilder();
sb.append("\n \n \nDepartment Name: ").append(this.name).append("\n").append("Employees: \n \n ");
for (Employee e:employeeList){
sb.append(e.toString()).append("\n");
}
return sb.toString();
}
}
public class Employee{
String name;
String title;
public String getName()
{
return this.name;
}
public void setName(String name)
{
this.name = name;
}
public String getTitle()
{
return this.title;
}
public void setTitle(String title)
{
this.title = title;
}
@Override
public String toString(){
StringBuilder sb = new StringBuilder();
sb.append("Employee: ").append(this.name).append("\n").append("Title:").append(this.title);
return sb.toString();
}
}
}
Calculating the occurence of letter 'u' in don uday:
1
------------------------------------------------------------------------
BUILD SUCCESS
------------------------------------------------------------------------
Total time: 1.908 s
Finished at: 2025-04-29T11:19:23+05:30Question 2
Create a class ‘student’ having data members: name of the student, roll no of the student and division. Derive a class test from student having data members: marks of 3 subjects, total marks, average marks. Create a class result and check whether the student is passed or failed. Provide constructors, read ( ) and display( ) methods in all classes. Create object of class result author and display all the details with status pass or fail.
Solution
classDiagram class Student { - String name - int rollNo - String division + Student() + void read() + void display() } class Test { - int mark1 - int mark2 - int mark3 - int total - float average + Test() + void read() + void display() } class Result { - String status + Result() + void read() + void display() + void checkResult() } Test --|> Student Result --|> Test
Result:
References
Information
- date: 2025.04.29
- time: 10:18