Prog 97: Area Calculator

///Name: Ilana Levy
///Period: 5
///Program Name: Area Calculator
///File Name: areaCalc.java
///Date Finished: 9/29/2015

import java.util.Scanner;

public class areaCalc
{
        public static void main( String[] args )
        {
                Scanner keyboard = new Scanner( System.in );
                
                int shape, radius, length, width, side, base, height;
                
                System.out.println( "Shape Area Calculator" );
            do
            {
            System.out.println( "\n-=-=-=-=-=-=-=-=-=-=-=-\n1) Triangle\n2) Rectangle\n3)Square\n4)Circle\n5)Quit\nWhich shape: " );
                shape = keyboard.nextInt();
                
                if ( shape == 1 )
                {
                    System.out.print( "Base: " );
                    base = keyboard.nextInt();
                    System.out.print( "Height: " );
                    height = keyboard.nextInt();
                    System.out.println( "The area is " + triangle(base, height) );
                    
                }
                else if ( shape == 2 )
                {
                    System.out.print( "Length: " );
                    length = keyboard.nextInt();
                    System.out.print( "Width: " );
                    width = keyboard.nextInt();
                    System.out.println( "The area is " + rectangle(length, width) );
                    
                }
                else if ( shape == 3 )
                {   System.out.print( "Side: " );
                    side = keyboard.nextInt();
                    System.out.println( "The area is " + square(side) );
                    
                }
                else if ( shape == 4 )
                {   System.out.println( "Radius: " );
                    radius = keyboard.nextInt();
                    System.out.println( "The area is " + circle(radius) );
                    
                }
                else 
                    Quit();
            } while ( shape != 5 );
            
        }
        public static double triangle( int base, int height )
        {
               double area = base * height /2;
                return area;
        }
        public static int rectangle( int length, int width )
        {
               int area = length * width;
                return area;
        }
        public static int square( int side )
        {
                int area = side * side ;
                return area ;
        }
        public static double circle( int radius )
        {
                double area = Math.PI * radius * radius ;
                return area;
                
        }
        public static String Quit()
        {
                String quit = "Goodbye" ;
            return quit;
        }
}