7. Select the correct text in the passage. Which line of code will give an error? public class Alphabet A. public double letterValue public int letterlD; public int Alphabet (double val, int num) letterValue val; letterlD num C. public void printDetails System.out.printin(valueletterValue) System.out.printinID" letterlD ) public static void main(String argsOX Alphabet abc new Alphabet(1.1,1), abc.printDetails0: 8. Select the correct answer. Which class acts as a black box to other classes? a class having the main method a class having private data members a class having a constructor a class having a static variable a class having an instance variable