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Java program to create an abstract class

Posted Date: Total Responses: 0 Posted By: Sunil Reddy Member Level: Platinum Points/Cash: 2

import java.lang.*;
abstract class Shape
{
abstract void numberOfSides();
}
class Traingle extends Shape
{
public void numberOfSides()
{
System.out.println("three");
}
}
class Trapezoid extends Shape
{
public void numberOfSides()
{
System.out.println("four");
}
}
class Hexagon extends Shape
{
public void numberOfSides()
{
System.out.println("six");
}
}
public class Sides
{
public static void main(String arg[])
{
Traingle T=new Traingle();
Trapezoid Ta=new Trapezoid();
Hexagon H=new Hexagon();
T.numberOfSides();
Ta.numberOfSides();
H.numberOfSides();

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Java program to create an abstract class

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