Java program to input the radius of a circle and find its area and perimeter

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

Note: Area of a circle=22/7* radius2

Circumference of a circle= 2 * 22/7 * radius

import java.util.*;
class AreaCircle
{
	public static void main(String arr[])
	{
		Scanner sc=new Scanner(System.in);
		float r,a,pi=3.142f,c;
		System.out.println(“Enter the radius:”);
		r=sc.nextFloat();
		a=pi*r*r;
		c=2*pi*r;
		System.out.println(“Area=”+a);
		System.out.println(“Circumference=”+c);
	}
}