Create a program that uses an array of Shape references to objects of each concrete class in the hierarchy (see program-2). The program should print a text description of the object to which each array element refers. Also, in the loop that processes all the shapes in the array, determine the size of each shape If it‟s a TwoDimensionalShape, display its area. If it‟s a ThreeDimensionalShape, display its area and volum ​

The program uses an array for shape reference to objects of each concrete class given. The program is in text description in java language.

Array programming in computer science refers to methods that allow operations to be applied to a whole set of values at once. This kind of solution is frequently used in scientific and engineering settings.

Shape.java

public abstract class Shape { private int sides;

public Shape() {

this.sides=0;

}

public Shape(int sides) { super(); this.sides = sides;

}

public int getSides() { return sides;

}

public void setSides (int sides) { this.sides = sides;

}

public abstract double calcArea();

Override

public String toString() {

return "This Shape has [sides=" + sides + "]";

Therefore, the program array is given above.

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