Class into method argument how to do?

Question

Java

public static void SetExecutor(String cmd, Class cls) {
    this.getCommand(cmd).setExecutor(new "class_name"());
  }

How to do it?

Answer 1

Without reflection, in any way, and it is better not to use reflection. The code looks type-unsafe. It's better to pass an interface instance or a reference to an interface constructor.