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POJava Program that shows the number of shapes in a geometric figure interactively
 

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  1. POJava Program that shows the number of shapes in a geometric figure interactively
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    <p>I have this java program that is supposed to show the number of sides of geometrical shapes of Triangle, Trapezoid and Hexagon. I managed to create the codes such that when I ran the java Shape its shows all the Shapes and the sides all at once, but I want to make it interactive such that a user can be prompted to enter the shape she wants and the return is the number of sides of it, which functionality in Java can best do this? </p> <pre><code>public abstract class Shape { public abstract void numberOfSides(); public static void main(String[] args) { System.out.println("The Geometrical characteristics of the figures are as follows"); Trapezoid t=new Trapezoid(); Triangle tg=new Triangle(); Hexagon h=new Hexagon(); t.numberOfSides(); tg.numberOfSides(); h.numberOfSides(); } } class Trapezoid extends Shape { public void numberOfSides() { System.out.println("Trapezoid~It is geometrical figure with an attribute of 4 sides (Of which two are parallel and with no angles)"); } } class Triangle extends Shape { public void numberOfSides() { System.out.println("Triangle~It is geometrical figure with an attribute of 3 sides"); } } class Hexagon extends Shape { public void numberOfSides() { System.out.println("Hexagon-It is geometrical figure with an attribute of 6 sides"); } } </code></pre> <p>This is my new cord after trying to implement above, its says errors exist, obsolete methods.. </p> <pre><code>import java.io.*; public abstract class Shape { public abstract void numberOfSides(); public static void main(String[] args) { System.out.println("Enter the name of the Shape"); BufferedReader br = new BufferedReader (new InputStreamReader(System.in)); try { String shapeName = br.readLine(); if (br.equals ("Trapezoid")) {Trapezoid t = new Trapezoid(); t.numberOfSides(); } else if (br.equals ("Triangle")) {Triangle tg = new Triangle(); tg.numberOfSides(); } else if (br.equals ("Hexagon")) {Hexagon h = new Hexagon(); h.numberOfSides(); } } } class Trapezoid extends Shape { public void numberOfSides() { System.out.println("Trapezoid~It is geometrical figure with an attribute of 4 sides (Of which two are parallel and with no angles)"); } } class Triangle extends Shape { public void numberOfSides() { System.out.println("Triangle~It is geometrical figure with an attribute of 3 sides"); } } class Hexagon extends Shape { public void numberOfSides() { System.out.println("Hexagon-It is geometrical figure with an attribute of 6 sides"); } } </code></pre>
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