Variables and Data Types Practice Test

Based on the student grade manager below, what is the main advantage of using a double instead of an int for average?

int quiz1 = 85;

int quiz2 = 86;

Gradebook gb = new Gradebook();

double average = gb.computeAverage(quiz1, quiz2);

System.out.println(average);

Based on the library tracker below, which data type is best suited for bookCount and why?

int bookCount = 4;

Library lib = new Library(bookCount);

lib.borrowOne();

System.out.println(lib.getBookCount());