Programming Examples

Java program to input the radius of a circle and find its area and circumference using math power function


Write a program to input the radius of a circle and find its area and circumference.

Solution

import java.util.*;
class AreaCircle
{
	public static void main(String arr[])
	{
		double c,a,r;
		Scanner sc=new Scanner(System.in);
		System.out.println(“Enter the radius of the circle:”);
		r=sc.nextDouble();
		a=22/7.0 * Math.pow(r,2);
		c=2*22/7.0*r;
		System.out.println(“Area=”+a);
		System.out.println(“Circumference=”+c);
	}
}
Output

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