Assignment #97 Area Calculator

Code

    /// Name: Koosha Kimelman
    /// Period: 7
    /// Program Name: Area Calculator
    /// File Name: AreaCalculator.java
    /// Date Completed: 3/23/16
    
    import java.util.Scanner;
    
    public class AreaCalculator {
    
        public static void main(String[] args) {
        
            Scanner k = new Scanner(System.in);
            
            int n = 0;
            
            do {
                System.out.println("------------------------------------\n");
                System.out.println("1) Triangle");
                System.out.println("2) Rectangle");
                System.out.println("3) Square");
                System.out.println("4) Circle");
                System.out.println("5) Quit");
                System.out.print("Which shape: ");
                n = k.nextInt();
                System.out.println();
            
                if (n == 1) {
                    System.out.print("Base: ");
                    double b = k.nextDouble();
                    System.out.print("Height: ");
                    double h = k.nextDouble();
                    System.out.println("\nThe area is " + triangle(b, h) + ".");
                }
                
                if (n == 2) {
                    System.out.print("Length: ");
                    double l = k.nextDouble();
                    System.out.print("Width: ");
                    double w = k.nextDouble();
                    System.out.println("\nThe area is " + rectangle(l, w) + ".");
                }
                
                if (n == 3) {
                    System.out.print("Side length: ");
                    double s = k.nextDouble();
                    System.out.println("\nThe area is " + square(s) + ".");
                }
                
                if (n == 4) {
                    System.out.print("Radius: ");
                    double r = k.nextDouble();
                    System.out.println("\nThe area is " + circle(r) + ".");
                }
                
                if (n == 5) 
                    System.out.println("Bye.");
            } while (n != 5);
        }
            
        public static double triangle(double b, double h) {
            double area;
            area = (b * h) / 2;
            return area;
        }
            
        public static double rectangle(double l, double w) {
            double area = l * w;
            return area;
        }
            
        public static double square(double s) {
            double area = s * s;
            return area;
        }
            
        public static double circle(double r) {
            double area = (r * r) * Math.PI;
            return area;
        }
    }
    

Picture of the output