Area and Circumference of a Circle:
import java.util.Scanner;class Circle
{
static Scanner sc = new Scanner(System.in);
public static void main()
{
System.out.print("Enter the radius: ");
double radius = sc.nextDouble();
//Area = PI*radius*radius
double area = Math.PI * (radius * radius);
System.out.println("The area of circle is: " + area);
//Circumference = 2*PI*radius
double circumference= Math.PI * 2*radius;
System.out.println( "The circumference of the circle is:"+circumference) ;
}
}
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