I'm working in a project class and want to know how to pass an ArrayList to the constructor.
For example, I have an Item
class with a child Class named CDRom
(inheritance), then CDRom
needs to have one or more authors so I thought that every object from CDRom
will have to have their own ArrayList inside the object. But this is possible? And how?
At the moment I have this:
public CDRom(int codi, double preu, String titul, Date dataPublicacion, List<String> autors, int stock) {
super(codi, preu, titul, dataPublicacion, autors);
this.stock = stock;
}
public static boolean createCdrom() {
boolean valid = true;
DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy/MM/dd");
LocalDate localDate = LocalDate.now();
System.out.println(dtf.format(localDate));
String[] arr = {"autor1","autor2","autor3"};
//CDRom cdrom = new CDRom(count++, 34.99, "The Beattles", dtf.format(localDate), Arrays.asList("asd1","asd2"),50);
CDRom cdrom = new CDRom(count++, 34.99, "The Beattles", dtf.format(localDate), Arrays.asList("asdd","asd"), 50);
return valid;
}
See the constructor arguments order
public CDRom(int codi, double preu, String titul, Date datePublicacion, ArrayList<String> autors, int stock){
But you are passing arguments in wrong order, and also you are trying to pass something invalid in the place of ArrayList
CDRom cdrom = new CDRom(count++, 34.99, "The Beattles", dtf.format(localDate), 50, autors[]{"asdd", "asd"});
Follow the order
CDRom cdrom = new CDRom(count++, 34.99, "The Beattles", dtf.format(localDate), Arrays.asList("asdd","asd"), 50);
Note Always update the code in the post not the image
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