methods5.java

//class work
import java.util.Scanner; //importing scanner
public class number5 { //program begins
    public static void main(String[] args) {

        //5. Write an application that prompts the user for the radius of a circle and uses a method called circleArea to calculate the area of the circle.

        Scanner input = new Scanner (System.in); //scanner declaration

        //variable declaration

        double radius;

        //input statement for the user to enter the radius
        System.out.println("Radius of a circle: ");
        radius = input.nextDouble();

        //output statement to display the area
        System.out.println("The area of a circle is: " +circleArea(radius));
    }

    public static double circleArea(double radius) {
        double area; //variable declaration
        final double pi = 3.14;
        area = pi * radius * radius; //calculating the area
        return area;
    } //method ends
} //program ends