Assignemnt #97 and Area Calculator

Code

/// Name: Kyle Ivy
/// Period: 5
/// Program Name: AreaCalc
/// File Name: AreaCalc.java
/// Date Finished: 4/20/2016

 import java.util.Scanner;

    public class AreaCalc
    {
        public static void main(String[] args)
        {
            Scanner keyboard = new Scanner(System.in);
            int choice;
            System.out.println("Shape Area Calculator version 1 " );
            
            do 
            {
                System.out.println();
                System.out.println("-=-=-=-=-=-=-=-=-=-=-=-=-");
                System.out.println();
                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: ");
                choice = keyboard.nextInt();
                System.out.println();
                
                if ( choice == 1 ){
                System.out.print("Base: ");
                int base = keyboard.nextInt();
                System.out.print("Height: ");
                int height = keyboard.nextInt();
                System.out.println();
                System.out.println("The area of the triangle is " + triangleArea( base, height ) + "." );
                }
                
                else if (choice == 2){
                System.out.print("Base: ");
                int base = keyboard.nextInt();
                System.out.print("Height: ");
                int height = keyboard.nextInt();
                System.out.println();
                System.out.println("The area of the rectangle is " + rectangleArea( base, height ) + "." );
                }
                
                else if (choice == 3){
                System.out.print("Side length: ");
                int length = keyboard.nextInt();
                System.out.println();
                System.out.println("The area of the square is " + squareArea( length ) + "." );
                }
                
                else if (choice == 4){
                System.out.print("Radius: ");
                int radius = keyboard.nextInt();
                System.out.println();
                System.out.println("The area of the circle is " + circleArea( radius ) + "." );
                }
                
                
            
            }while( choice != 5 );
            
            System.out.println("Goodbye");
        }
        
        public static double triangleArea( int base, int height )
        {
            double result;
            result = (base*height)/2.0;
            return result;
        }
        
        public static int rectangleArea( int base, int height )
        {
            int result;
            result = base*height;
            return result;
        }
        public static int squareArea( int length )
        {
            int result;
            result = length*length;
            return result;
        }
        public static double circleArea( int radius )
        {
            double result;
            result = Math.PI*(radius*radius);
            return result;
        }
    }

 
    
    

prog97.PNG