JAVA EE: Java Tutorial : Java abstract class(shape)

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Java Tutorial : Java abstract class(shape)

Shape.java

public abstract class Shape
{
    abstract void draw();

}

class Rectangle extends Shape
{
    @Override
    void draw()
    {
        System.out.println("Drawing Rectangle...");
    }
}

class Circle extends Shape
{
    @Override
    void draw()
    {
        System.out.println("Drawing Circle...");
    }
}

AbstractClassTest.java

public class AbstractClassTest
{

    public static void main(String[] args)
    {
        Shape shapeRef = new Rectangle();
        shapeRef.draw();
        
        shapeRef = new Circle();
        shapeRef.draw();
    }

}

Output