Lab OOP 2

lab_2_1.cpp

#include <iostream>
#include <string>

class Laptop {
private:
    std::string brand, model;
    int serial, ram;
    float price, processorSpeed, screenSize;
public:
    const std::string &getBrand() const {
        return brand;
    }

    Laptop setBrand(const std::string &brand) {
        Laptop::brand = brand;
        return *this;
    }

    const std::string &getModel() const {
        return model;
    }

    Laptop setModel(const std::string &model) {
        Laptop::model = model;
        return *this;
    }

    int getSerial() const {
        return serial;
    }

    Laptop setSerial(int serial) {
        Laptop::serial = serial;
        return *this;
    }

    int getRam() const {
        return ram;
    }

    Laptop setRam(int ram) {
        Laptop::ram = ram;
        return *this;
    }

    float getPrice() const {
        return price;
    }

    Laptop setPrice(float price) {
        Laptop::price = price;
        return *this;
    }

    float getProcessorSpeed() const {
        return processorSpeed;
    }

    Laptop setProcessorSpeed(float processorSpeed) {
        Laptop::processorSpeed = processorSpeed;
        return *this;
    }

    float getScreenSize() const {
        return screenSize;
    }

    Laptop setScreenSize(float screenSize) {
        Laptop::screenSize = screenSize;
        return *this;
    }
};

int main() {
    Laptop laptop1, laptop2, laptop3;
    laptop1.setModel("2020").setBrand("Samsung").setPrice(200.2).setProcessorSpeed(2.6).setRam(4).setScreenSize(16.5).setSerial(1645);
    std::cout << "Laptop 1: "
              << "Model: " << laptop1.getModel()
              << "Brand: " << laptop1.getBrand()
              << "Processor Speed: " << laptop1.getProcessorSpeed()
              << "RAM: " << laptop1.getRam()
              << "Screen Size: " << laptop1.getScreenSize()
              << "Serial: " << laptop1.getSerial();

    laptop2.setModel("2020").setBrand("Dell").setPrice(200.2).setProcessorSpeed(2.6).setRam(4).setScreenSize(16.5).setSerial(1645);
    std::cout << "Laptop 2: "
              << "Model: " << laptop2.getModel()
              << "Brand: " << laptop2.getBrand()
              << "Processor Speed: " << laptop2.getProcessorSpeed()
              << "RAM: " << laptop2.getRam()
              << "Screen Size: " << laptop2.getScreenSize()
              << "Serial: " << laptop2.getSerial();

    laptop3.setModel("2020").setBrand("HP").setPrice(200.2).setProcessorSpeed(2.6).setRam(4).setScreenSize(16.5).setSerial(1645);
    std::cout << "Laptop 3: "
              << "Model: " << laptop2.getModel()
              << "Brand: " << laptop2.getBrand()
              << "Processor Speed: " << laptop2.getProcessorSpeed()
              << "RAM: " << laptop2.getRam()
              << "Screen Size: " << laptop2.getScreenSize()
              << "Serial: " << laptop2.getSerial();

    return 0;
}

lab_2_2.cpp

#include <iostream>
#include <string>

class Student {
private:
    std::string name;
    int roll, tMark;
    double percentage;
public:
    const std::string &getName() const {
        return name;
    }

    Student setName(const std::string &name) {
        Student::name = name;
        return *this;
    }

    int getRoll() const {
        return roll;
    }

    Student setRoll(int roll) {
        Student::roll = roll;
        return *this;
    }

    int getTMark() const {
        return tMark;
    }

    Student setTMark(int tMark) {
        Student::tMark = tMark;
        return *this;
    }

    double getPercentage() const {
        return percentage;
    }

    Student setPercentage(double percentage) {
        Student::percentage = percentage;
        return *this;
    }
};


int main() {
    Student std1, std2, std3;

    //std 1
    std1.setName("Umer").setPercentage(50).setRoll(16565).setTMark(156);
    std::cout << "Student 1" << std::endl
              << "Name: " << std1.getName() << std::endl
              << "Roll: " << std1.getRoll() << std::endl
              << "Mark: " << std1.getTMark() << std::endl
              << "Percentage: " << std1.getPercentage() << std::endl;

    //std 2
    std1.setName("Jawad").setPercentage(50).setRoll(16565).setTMark(156);
    std::cout << "Student 1" << std::endl
              << "Name: " << std1.getName() << std::endl
              << "Roll: " << std1.getRoll() << std::endl
              << "Mark: " << std1.getTMark() << std::endl
              << "Percentage: " << std1.getPercentage() << std::endl;

    //std 3
    std1.setName("Ali").setPercentage(50).setRoll(16565).setTMark(156);
    std::cout << "Student 1" << std::endl
              << "Name: " << std1.getName() << std::endl
              << "Roll: " << std1.getRoll() << std::endl
              << "Mark: " << std1.getTMark() << std::endl
              << "Percentage: " << std1.getPercentage() << std::endl;
    return 0;
}