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Write a JavaScript program to get the volume of a Cylinder with four decimal places using...

Write a JavaScript program to get the volume of a Cylinder with four decimal places using object classes. Volume of a cylinder : V = πr2h where r is the radius and h is the height of the cylinder.

Your solution must include an HTML and a JavaScript file, with a button to create the cylinder, inputs for the cylinder's radius and height and an output to show the cyclinder's volume.

Your solution must also use an object for the cylinder, a constructor for passing the radius and height, and a getter for returning the volume.

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Answer #1

Dear Student ,

As per the requirement submitted above , kindly find the below solution.

Here a new web page with name "CylinderVolume.html" is created, which contains following code.

CylinderVolume.html :

<!DOCTYPE html>

<html lang="en">

<head>

<!-- title for web page -->

<title>Cylinder Volume</title>

<meta charset="UTF-8">

<meta name="viewport" content="width=device-width, initial-scale=1">

<!-- <script> refers to external javascript file -->

<script src="CylinderVolume.js"></script>

</head>

<body>

Radius :

<!-- textbox for radius of Cylinder -->

<input type="text" id="txtRadius" placeholder="Radius">

<br><br>

Height :

<!-- textbox for height of Cylinder -->

<input type="text" id="txtHeight" placeholder="Height">

<br><br>

<!-- button to call the javascript file -->

<input type="button" value="Volume of Cylinder" onclick="cylinderVolume()">

<br><br>

<!-- div to display cylinder volume -->

<div id="displayVolume"></div>

</body>

</html>

*******************************

CylinderVolume.js :

//External Javascript file

//Javascript class

class Cylinder

{

//constructor

constructor(radius, height) {

this.radius = radius;

this.height = height;

}

//method to return the volume of cylinder

getVolume() {

return Math.PI*this.radius*this.radius*this.height;

}

}

//function to calculate volume of cylinder

function cylinderVolume()

{

//get radius entered by user

var radius=document.getElementById("txtRadius").value;

//get height entered by user

var height=document.getElementById("txtHeight").value;

//creating object of Cylinder class

var c=new Cylinder(radius,height);

//calling method to get the volume of cylinder

var volume=c.getVolume();

//display cylinder volume on the div

document.getElementById("displayVolume").innerHTML="Volume of Cylinder : "+volume.toFixed(4);

}

======================================================

Output : Open web page CylinderVolume.html in the browser and will get the screen as shown below

Screen 1 :CylinderVolume.html

Screen 2 :Screen showing volume of cylinder

NOTE : PLEASE FEEL FREE TO PROVIDE FEEDBACK ABOUT THE SOLUTION.

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