Description

To calculate volume of a Cylinder use formula
	volume = PI x radius x radius x height

To calculate Surface Area of a Cylinder use formula
	Surface area = 2 x PI x radius x height + 2 x PI x radius x radius
	
	where PI = 3.14285714286

C/C++

/* C Program to calculate volume and surface area of cylinder */
//Save it as VolumeSurfaceAreaCylinder.c

#include<stdio.h>
#define PI 3.14285714286
int main(){

    float radius, height, volume, surfaceArea;

    printf("Enter the Radius of Cylinder : ");
    scanf("%f",&radius);

    printf("Enter the Height of Cylinder : ");
    scanf("%f",&height);

    //The volume of cylinder is calculated using the formula
    //Volume = PI x radius x radius x height
    volume = PI*radius*radius*height;

    printf("The volume of cylinder : %.3f",volume);
    
    /*To find the surface area of a cylinder add the surface area of each end
     plus the surface area of the side. Each end is a circle so the surface
     area of each end is PI x radius x radius, where radius is the radius of the end.
     There are two ends so their combined surface area is 2 x PI x radius x radius.
     The surface area of side is 2 x PI x radius x height */
     surfaceArea = ((2*PI*radius*height) + (2*PI*radius*radius));

     printf("\nThe Surface Area of cylinder : %.3f",surfaceArea);

     return 0;
}

Input:
Enter the Radius of Cylinder : 15
Enter the Height of Cylinder : 17

Output:
The volume of cylinder = 12021.428
nThe Surface Area of cylinder = 3017.1428

Java

/* Java Program to calculate volume and surface area of cylinder */
//Save it as VolumeSurfaceAreaCylinder.java

import java.io.*;
import java.util.Scanner;

public class VolumeSurfaceAreaCylinder {

    public static void main(String[] args) {

            Scanner scanner = new Scanner(System.in);
        
            float radius, height, volume, surfaceArea, PI=(float) 3.14285714286;

        System.out.println("Enter the Radius of Cylinder : ");
        radius = scanner.nextFloat();

        System.out.println("Enter the Height of Cylinder : ");
        height = scanner.nextFloat();

            //The volume of cylinder is calculated using the formula
        //Volume = PI x radius x radius x height
        volume = PI*radius*radius*height;

        System.out.println("The volume of cylinder = "+volume);


        /*To find the surface area of a cylinder add the surface area of each end
         plus the surface area of the side. Each end is a circle so the surface
         area of each end is PI x radius x radius, where radius is the radius of the end.
         There are two ends so their combined surface area is 2 x PI x radius x radius.
         The surface area of side is 2 x PI x radius x height */
         surfaceArea = ((2*PI*radius*height) + (2*PI*radius*radius));

         System.out.println("The Surface Area of cylinder = "+surfaceArea);
    }
}

Input:
Enter the Radius of Cylinder : 
15
Enter the Height of Cylinder : 
17

Output:
The volume of cylinder = 12021.428
The Surface Area of cylinder = 3017.1428

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