Question

URGENT!!!

DO THIS PROGRAM IN JAVA

Write a complete Java console based program following these steps:

1. Write an abstract Java class called Shape which has only one abstract method named getArea();

2. Write a Java class called Rectangle which extends Shape and has two data membersnamed width and height.The Rectangle should have all get/set methods, the toString method, and implement the abstract method getArea()it gets from class Shape.

3. Write the driver code tat tests the classes and methods you write above.

Answer 1

//Shape.java
public abstract class Shape {
    abstract double getArea();
}

////////////////////////////////////////////////////////

//Rectangle.java
public class Rectangle extends Shape{
    private int width;
    private int height;

    public Rectangle(int width, int height) {
        this.width = width;
        this.height = height;
    }

    public int getWidth() {
        return width;
    }

    public void setWidth(int width) {
        this.width = width;
    }

    public int getHeight() {
        return height;
    }

    public void setHeight(int height) {
        this.height = height;
    }

    double getArea() {
        return width*height;
    }

    public String toString() {
        return "Rectangle{" +
                "width=" + width +
                ", height=" + height +
                '}';
    }
}

////////////////////////////////////////////////////////

//Main.java
public class Main {
    public static void main(String[] args) {
        Rectangle rectangle = new Rectangle(3,4);
        System.out.println("Area = "+rectangle.getArea());
    }
}

Area = 12.0