I need to write a program to prompt the user to choose from a menu of 5 differen

Question

I need to write a program to prompt the user to choose from a menu of 5 different shapes then write the code to calculate and display the area of that shape. This is what I have so far. I just have to shapes in the switch and I can not get it to compile. import java.util.Scanner; public class shapes { public static void main(String[] args) { Scanner stdIn=new Scanner(System.in); String shapes= "1. Square " + "2. Rectangle " + "3. Triangle " + "4. Trapezoid " + "5. Circle "; String shapeNum; int shapeIndex; int eolIndex; String shape; System.out.println("Pick a number for the shape you want the area of " + shapes); shapeNum = stdIn.nextLine(); shapeIndex = shapes.indexOf(shapeNum); eolIndex = shapes.indexOf(" ", shapeIndex); shape = shapes.substring(shapeIndex, eolIndex); System.out.println(shape); switch (shape.charAt(0)) { case '1': int length; int area; System.out.println("What is the length of the Square = "); length = stdIn.nextInt(); area = length*4; System.out.println("The area of the Square is = " + area); break; case '2': int length1; int width; int area2; System.out.println("What is the length of the Rectangle = "); lenght1 = stdIn.nextInt(); System.out.println("What is the width of the Rectangle = "); width = stdIn.nextInt(); area2 = length1*width; System.out.println("The area of the Rectangle is = "); break; } } }

Explanation / Answer

Please rate...

program Shapes.java

====================================================

import java.util.Scanner;
public class Shapes
{
    public static void main(String[] args)
    {
        Scanner stdIn=new Scanner(System.in);
        String shapes= "1. Square " + "2. Rectangle " +
                "3. Triangle " + "4. Trapezoid " + "5. Circle ";
        String shapeNum;
        int shapeIndex;
        int eolIndex;
        String shape;
        System.out.println("Pick a number for the shape you " +
                "want the area of: " + shapes);
        shapeNum = stdIn.nextLine();
        shapeIndex = shapes.indexOf(shapeNum);
        eolIndex = shapes.indexOf(" ", shapeIndex);
        shape = shapes.substring(shapeIndex, eolIndex);
        System.out.println(shape);
        switch (shape.charAt(0))
        {
            case '1':
                int length;
                int area;
                System.out.print("What is the length of the Square = ");
                length = stdIn.nextInt();
                area = length*length;
                System.out.println("The area of the Square is = " + area);
                break;
            case '2':
                int length1;
                int width;
                int area2;
                System.out.print("What is the length of the Rectangle = ");
                length1 = stdIn.nextInt();
                System.out.print("What is the width of the Rectangle = ");
                width = stdIn.nextInt();
                area2 = length1*width;
                System.out.println("The area of the Rectangle is = "+area2);
                break;
            case '3':
                int base;
                int height;
                System.out.print("What is the base of the triangle = ");
                base = stdIn.nextInt();
                System.out.print("What is the height of the triangle = ");
                height = stdIn.nextInt();
                double area1 = (base*height)/2;
                System.out.println("The area of the Square is = " + area1);
                break;
            case '4':
                int base1,base2;
                int height1;
                System.out.print("What is the base 1 of the trapezoid = ");
                base1 = stdIn.nextInt();
                System.out.print("What is the base 2 of the trapezoid = ");
                base2 = stdIn.nextInt();
                System.out.print("What is the height of the trapezoid = ");
                height1 = stdIn.nextInt();
                double area4 = ((base1+base2)*height1)/2;
                System.out.println("The area of the Square is = " + area4);
                break;
            case '5':
                int radius;
                double area5;
                System.out.print("What is the radius of the circle = ");
                radius = stdIn.nextInt();
                area5 = Math.PI*radius*radius;
                System.out.println("The area of the Square is = " + area5);
                break;
            default:System.out.println("Wrong entry");
        }
    }
}

=========================================================

Sampe output:

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---