87 lines
3.3 KiB
Java
87 lines
3.3 KiB
Java
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import java.util.Scanner;
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public class CircularApp
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{
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// This is a static variable. It will retain its value alongside class CircleApp
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private static Circle circle = null;
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// This is a static variable. It will retain its value alongside class CircleApp
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private static Elipse elipse = null;
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public static void main(String[] args)
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{
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int option;
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Scanner scanner = new Scanner(System.in);
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do {
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printMenu();
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option = scanner.nextInt();
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if (option == 1) circle = createCircle(scanner);
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else if (option == 2) elipse = createElipse(scanner);
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else if (option == 3) printCircleArea();
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else if (option == 4) printElipseArea();
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else if (option == 5) printCircleCircumference();
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else if (option == 6) printElipseCircumference();
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} while (option < 7);
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System.out.println("Thank you!!");
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}
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private static void printElipseCircumference() {
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if (elipse == null) System.out.println("Create a elipse first.");
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else elipse.printCircumference();
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}
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private static void printCircleCircumference() {
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if (circle == null) System.out.println("Create a circle first.");
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else circle.printCircumference();
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}
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private static void printElipseArea() {
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if (elipse == null) System.out.println("Create a elipse first.");
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else elipse.printArea();
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}
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private static void printCircleArea() {
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if (circle == null) System.out.println("Create a circle first.");
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else circle.printArea();
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}
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private static Elipse createElipse(Scanner scanner) {
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double smallRadius = 0.0;
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double largeRadius = 0.0;
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Elipse elipse;
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System.out.println("Enter the radius 1 to compute the area and circumference");
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smallRadius = scanner.nextDouble();
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System.out.println("Enter the radius 2 to compute the area and circumference");
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largeRadius = scanner.nextDouble();
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if (smallRadius > largeRadius) {
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double tempRadius = smallRadius;
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smallRadius = largeRadius;
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largeRadius = tempRadius;
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}
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elipse = new Elipse(smallRadius, largeRadius);
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System.out.println("A new elipse is created");
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return elipse;
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}
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private static Circle createCircle(Scanner scanner) {
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double radius = 0.0;
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Circle circle;
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System.out.println("Enter the radius to compute the area and circumference");
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radius = scanner.nextDouble();
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circle = new Circle(radius);
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System.out.println("A new circle is created");
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return circle;
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}
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private static void printMenu() {
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System.out.println("====== Circle Computation =======");
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System.out.println("|1. Create a new circle |");
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System.out.println("|2. Create a new elipse |");
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System.out.println("|3. Print Circle Area |");
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System.out.println("|4. Print Elipse Area |");
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System.out.println("|5. Print Circle circumference |");
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System.out.println("|6. Print Elipse circumference |");
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System.out.println("|7. Quit |");
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System.out.println("=================================");
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System.out.println("Choose option (1-6):");
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}
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}
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