java - The method is undefined for the type Class<capture#3-of ? extends Command> -

i have abstract class

package main;  public abstract class command {     protected final string key;      public command(string key) {         this.key = key;     }      public abstract void function(string[] args);     public abstract void help(); } 

but when try call method function(string[] args), albeit in confusing , overly complicated way, problems ensue.

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class<? extends command> x = (class<? extends command>) class.forname(         "main.commands$" +         string.valueof(command.tochararray()[0]).touppercase() +         command.substring(1).tolowercase() );  x.function(args); 

gives me error the method function(string[]) undefined type class<capture#3-of ? extends command>

i alternatively tried following:

command x = (command) class.forname(         "main.commands$" +         string.valueof(command.tochararray([0]).touppercase() +         command.substring(1).tolowercase() ); 

but gave me cannot cast class<capture#1-of ?> command.

i apologize in advance poor naming.

the class.forname returning class<?> object, not command. need create command using 1 of constructors in class<?> object.

class<command> klass = (class<command>) class.forname(     "main.commands " +     string.valueof(command.tochararray([0]).touppercase() +     command.substring(1).tolowercase() );  command x = klass.newinstance(); 

alternatively can use klass.getconstructor(...) method