Q:

Kotlin program to find area of circle

belongs to collection: Kotlin Basic Programs

YasminRadwan26
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2022-07-12
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Given radius of the circle, we have to find the area of circle.

Example:

    Input:
    Radius: 3

    Output:
    Area of circle: 28.259999999999998

To find the area of the circle, we use the formula: π r2.

Here,

  • π stands for PI which is a mathematical constant and it's value of 3.14, it defined as the ratio of a circle’s circumference to its diameter and it also has the various equivalent definitions.
  • r is the radius of the circle.
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YasminRadwan26
2022-07-12
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Program to find area of circle in Kotlin

package com.includehelp.basic

import java.util.*

// PI Constant Value
val PI = 3.14

/* function to calculate area of circle of given radius */
fun getAreaOfCirlce(radius: Double): Double {
    return PI * radius * radius
}

// Main Method Entry Point of Program
fun main(args:Array<String>){
    val sc = Scanner(System.`in`)
    
    // Input Radius
    println("Enter Circle Radius  : ")
    val radius = sc.nextDouble()
    
    // Call function to get Area of Circle
    val areaOfCircle = getAreaOfCirlce(radius)
    
    // Print Area of Circle
    println("Area of Circle : $areaOfCircle") 
}

Output

Run 1:
Enter Circle Radius  :
3
Area of Circle : 28.259999999999998
-----
Run 2:
Enter Circle Radius  :
8
Area of Circle : 200.96

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