Static Variables and Methods

public class Circle {
    public static final double PI = 3.14159;
    private double r;
    public Circle(double r) { this.r = r; }
    public double area() { return PI * r * r; }
}
// ...
Circle c = new Circle(2);
System.out.println(c.area());

• A

  12.56636

  check_circle
• B

  6.28318

• C

  3.14159

• D

  Compile-time error