# JavaScript: Calculate the volume of a Cylinder

## JavaScript Object: Exercise-5 with Solution

Write a JavaScript program to get the volume of a cylindrical 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.

Sample Solution: -

HTML Code:

``````<!DOCTYPE html>
<html>
<meta charset="utf-8">
<title>Volume of a Cylinder</title>
<body>
</body>
</html>
```
```

JavaScript Code:

``````function Cylinder(cyl_height, cyl_diameter) {
this.cyl_height = cyl_height;
this.cyl_diameter = cyl_diameter;
}

Cylinder.prototype.Volume = function () {
var radius = this.cyl_diameter / 2;
};

var cyl = new Cylinder(7, 4);
// Volume of the cylinder with four decimal places.
console.log('volume =', cyl.Volume().toFixed(4));
```
```

Sample Output:

```volume = 87.9646
```

Flowchart: Live Demo:

See the Pen javascript-object-exercise-5 by w3resource (@w3resource) on CodePen.

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