What can't be created directly from the class? abstract class Shape $\{$

String color;

$//$ abstract method

abstract double area$()$;

public abstract String toString$()$;

$//$ abstract class can have a constructor public Shape$($String color$)\{$

System.out.printIn$("$Shape constructor called"$)$;

this.color $=$ color;

$\}$

$//$ concrete method

public String getColor$()\{$

return color;

$\}$

$\}$

An object

A variable

A constructor

A method