What would be wrong with adding the following statement to Figure 7.24’s main method?

PennyJar.addPenny();

Figure 7.24

/****** * Penny Jar Driver.java *Dean & Dean * *This class drives the Penny Jar class. *** public class PennyJarDriver ( public static void main(String[] args) ( PennyJar penny Jarl = new PennyJar(); Penny Jar pennyJar2 = new PennyJar(); 2 3 PennyJar.setGoal (4000); pennyJarl.add Penny (); penny Jarl.addPenny(); pennyJar2.addPenny(); System.out.println(pennyJarl.getPennies ()); System.out.println(Penny Jar.getAll Pennies()); } // end main 3 // end class Penny Jar Driver Output: Clink! Clink! Clink! */