java-programs/Abstraction.java at main · Vis-maya250/java-programs · GitHub

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abstract class Shape
{
    abstract void numberOfSides();
}
class Rectangle extends Shape
{
    int side;
    Rectangle(int side)
    {
        this.side=side;
    }
    public void numberOfSides()
    {
        System.out.println("number of sides in Rectangle: "+side);
    }
}
class Triangle extends Shape
{
    int side;
    Triangle(int side)
    {
        this.side=side;
    public void numberOfSides()
    {
        System.out.println("number of side in Trianglr: "+side);
    }
}
class Hexagon extends Shape
{
    int side;
    Hexagon(int side)
    {
        this.side=side;
    }
}
public void numberOfSides()
{
    System.out.println("number of sides in Hexagon: "+side);
}
}
public class Abstraction
{
    public static void main(String args[])
    {
        Rectangle r=new Rectangle(4);
        Triangle t=new Triangle(3);
        Hexagon h=new Hexagon(6);
        r.numberOfSides();
        t.numberOfSides();
        h.numberOfSides();
    }
}