57 lines
1.2 KiB
Java
57 lines
1.2 KiB
Java
import java.util.Scanner;
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abstract class Shape {
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abstract double calculateArea();
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}
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class Rectangle extends Shape {
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double length;
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double width;
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Rectangle(double length, double width) {
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this.length = length;
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this.width = width;
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}
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double calculateArea() {
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return length * width;
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}
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}
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class Circle extends Shape {
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double radius;
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Circle(double radius) {
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this.radius = radius;
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}
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double calculateArea() {
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return Math.PI * radius * radius;
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}
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}
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class RecCircleAbstract {
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public static void main(String[] args) {
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Scanner scanner = new Scanner(System.in);
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System.out.print("Enter rectangle length: ");
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double length = scanner.nextDouble();
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System.out.print("Enter rectangle width: ");
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double width = scanner.nextDouble();
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Rectangle rectangle = new Rectangle(length, width);
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System.out.println("Rectangle area: " + rectangle.calculateArea());
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System.out.print("Enter circle radius: ");
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double radius = scanner.nextDouble();
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Circle circle = new Circle(radius);
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System.out.println("Circle area: " + circle.calculateArea());
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scanner.close();
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}
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}
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