Playing Compiler—ConstructorsExplain why the following classes do not compile.   public cl...

Playing Compiler—Constructors

Explain why the following classes do not compile.

   public class Mama   {     protected int x;     public Mama()     {       x = 0;     }     public Mama(int y)     {       x = y;     }   }

   public class Son extends Mama   {     public Son()     { }     public static void main(String[] args)     {       Son s = new Son(2);     }   }