Consider the Code Shown Below

Consider the code shown below. It contains a syntax error, preventing successful compilation and execution. What is the error?
public class Inherit
{
class Figure
{
void display()
{
System.out.println("Figure");
}
}
class Rectangle extends Figure
{
final void display()
{
System.out.println("Rectangle");
}
}
class Box extends Rectangle
{
void display() {
System.out.println("Box");
}
}
Inherit()
{
Figure f = new Figure();
Rectangle r = new Rectangle();
Box b = new Box();
b.display();
}
public static void main(String[] args)
{
new Inherit();
}
}
f.display();
r.display();