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class figure
{
double d1,d2;
figure(double a,double b)
{
d1=a;
d2=b;
}
double area()
{
System.out.println("Area of the figure");
return 0;
}
}
class rectangle extends figure
{
rectangle(double a,double b)
{
super(a,b);
}
double area()
{
System.out.println("Area of rectangle");
return d1*d2;
}
}
class triangle extends figure
{
triangle(double a,double b)
{
super(a,b);
}
double area()
{
System.out.println("Area of triangle");
return d1*d2/2;
}
}
class runpoly
{
public static void main(String[] args)
{
figure f=new figure(45,6);
rectangle r=new rectangle(10,30);
triangle t=new triangle(10,20);
figure a;
a=f;
System.out.println(a.area());
a=r;
System.out.println(a.area());
a=t;
System.out.println(a.area());
}
}
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Area of figure
0.0
Area of rectangle
300.0
Area of triangle
100.0
Posted in: Computer
