Lab 2 – OOP (Functions in C++)

Code

#include <iostream>
#include <cmath>

#define PI 3.14

using namespace std;

class Volume {
public:
    float calculateVolume(float sidelength) {
        return pow(sidelength, 3);
    }

    float calculateVolume(float radius, float height) {
        return PI * pow(radius, 2) * height;
    }

    float calculateVolume(float length, float breadth, float rectangularHeight) {
        return length * breadth * rectangularHeight;
    }
};

//ACE078BCT071
int main() {
    Volume v;
    float sidelength, length, breadth, cylinderHeight, radius, rectangularHeight;

    // Cube
    cout << "Enter the side length of the cube: ";
    cin >> sidelength;

    // Cylinder
    cout << "Enter the radius of the cylinder: ";
    cin >> radius;
    cout << "Enter the height of the cylinder: ";
    cin >> cylinderHeight;

    // Rectangular box
    cout << "Enter the length of the rectangular box: ";
    cin >> length;
    cout << "Enter the width of the rectangular box: ";
    cin >> breadth;
    cout << "Enter the height of the rectangular box: ";
    cin >> rectangularHeight;

    cout << "\nVolume of the cube is: " << v.calculateVolume(sidelength);
    cout << "\nVolume of the cylinder is: " << v.calculateVolume(radius, cylinderHeight);
    cout << "\nVolume of the rectangle is: " << v.calculateVolume(length, breadth, rectangularHeight);

    return 0;
}

Image

Output

Code

#include <iostream>
using namespace std;

class loop{
public:
void looping(int n=5,char a= 's'){//default arguments
	int i;
	for(i=1;i<=n;i++){
			cout<<a<<endl;
		}	
	}
//ACE078BCT071	
};
int main(){
	loop l; //making object of class loop
	l.looping();
	return 0;
}

Images

Output

Code

#include <iostream>
using namespace std;

class employee{
	private:
		int salary;
	public:
		void getdata();//Defining function only
		void vat();		
};
inline void employee:: getdata(){//accesing function using inline
	cout<<"Enter Salary: ";
	cin>>salary;
}//ACE078BCT071
inline void employee::vat(){ 
	float netsalary;
	netsalary = salary - 0.1 * salary;
	cout<<"\nThe salary after VAT is: "<<netsalary;	
}
int main(){
	employee e;//object creation
	e.getdata();
	e.vat();
	return 0;
} 

Images

Output

Code

#include <iostream>
using namespace std;

class compare_temp{
	public: 
	int &temperature(int &a,int &b){//returning by reference
		if(a>b){
			return a;
		}else{
			return b;
		}
	}
};//ACE078BCT071
int main(){
	compare_temp c;
	int low_temp,high_temp;
		//taking input
		cout<<"Enter Higher temperature: ";
		cin>>high_temp;
		cout<<"\nEmter Lower Temperature: ";
		cin>>low_temp;
		cout<<"\nInitial Temperatures are: "<<high_temp<<" and "<<low_temp;
		c.temperature(high_temp,low_temp)=100;//changing grater value 
		cout<<"\nFinal Temperatures are: "<<high_temp<<" and "<<low_temp;
		return 0;	
}

Images

Output

Code

#include<iostream>
using namespace std;
class sum{
	private:
		int n,i;
	public:
		void getdata(){
		cout<<"How many numbers? ";
		cin>>n;
		}
		
		void avg(){
		float avg; int *p,tot=0;
		p=new int[n];
		
		for(i=0;i<n;i++){
		cin>>p[i];
		tot  =tot+p[i];
		}
		
		avg = static_cast<float>(tot)/n;
		cout<<"Total= "<<tot;
		cout<<"Avg = "<<avg;
		
		
		
		
		delete []p;

	}	
};

int main(){
	sum s;
	s.getdata();
	s.avg();
	return 0;
	}