Main.java

abstract class Shape {
    double dim1;
    double dim2;
    Shape(double d1, double d2) {
        dim1 = d1;
        dim2 = d2;
    }
    abstract double area();
}
class Rectangle extends Shape {
    Rectangle(double length, double width) {
        super(length, width);
    }
    double area() {
        return dim1 * dim2;
    }
}
class Triangle extends Shape {
    Triangle(double base, double height) {
        super(base, height);
    }
    double area() {
        return 0.5 * dim1 * dim2;
    }
}
public class Main {
    public static void main(String[] args) {
        Shape rectangle = new Rectangle(10, 5);
        Shape triangle = new Triangle(6, 8);
        System.out.println("Area of Rectangle: " + rectangle.area());
        System.out.println("Area of Triangle: " + triangle.area());
    }
}