Quoter.java

package nl.utwente.di.bookQuote;

public class Quoter {
    public double getBookPrice(String isbn) {
        switch (isbn) {
            case "1":
                return 10;
            case "2":
                return 45;
            case "3":
                return 20;
            case "4":
                return 35;
            case "5":
                return 50;
            default:
                return 0;
        }
    }
}