63 lines
1.7 KiB
Java
63 lines
1.7 KiB
Java
import java.util.Scanner;
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// Define the interface with a method to compute the area
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interface AreaComputable {
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double computeArea();
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}
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// Rectangle class implementing AreaComputable interface
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class Rectangle implements AreaComputable {
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private double length;
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private double width;
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// Constructor to initialize rectangle dimensions
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public 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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// Implement computeArea() method
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public double computeArea() {
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return length * width;
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}
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}
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// Circle class implementing AreaComputable interface
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class Circle implements AreaComputable {
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private double radius;
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// Constructor to initialize circle radius
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public Circle(double radius) {
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this.radius = radius;
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}
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// Implement computeArea() method
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public double computeArea() {
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return Math.PI * radius * radius;
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}
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}
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// Main class to run the program
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public class RecCircleInterface {
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public static void main(String[] args) {
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Scanner scanner = new Scanner(System.in);
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// Input and compute area of the rectangle
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System.out.println("Enter length and width of the rectangle:");
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double length = scanner.nextDouble();
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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("Area of Rectangle: " + rectangle.computeArea());
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// Input and compute area of the circle
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System.out.println("Enter radius of the circle:");
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double radius = scanner.nextDouble();
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Circle circle = new Circle(radius);
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System.out.println("Area of Circle: " + circle.computeArea());
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scanner.close();
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}
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}
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