Java Program To Find Circle Perimeter

Chapter: Math Class Last Updated: 15-06-2016 19:33:40 UTC

Program:

            /* ............... START ............... */
                
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class JavaCirclePerimeter {

	public static void main(String[] args) {

		int radius = 0;
		System.out.println("Please enter radius of a circle");

		try {

			BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
			radius = Integer.parseInt(br.readLine());
		}

		catch (NumberFormatException ne) {
			System.out.println("Invalid radius value" + ne);
			System.exit(0);
		} catch (IOException ioe) {
			System.out.println("IO Error :" + ioe);
			System.exit(0);
		}

		double perimeter = 2 * Math.PI * radius;

		System.out.println("Perimeter of a circle is " + perimeter);
	}
}
                /* ............... END ............... */
        

Output

0.6818631408439834

Tags

Circle Perimeter, Java, Math

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