Java Cannot find symbol Syntax error

Question

I am new to java and I a have written the code below. For some reason I'm getting Cannot find symbol symbol: Method size() location: class Object error message. I have read it is a common syntax error, but I cannot figure out where I went wrong. Please advise!

import java.util.Scanner;

    public class BillboardMain {
    public static void main(String[] args) {
        Scanner console = new Scanner(System.in);
        Billboard billboard = new Billboard();

        while (true) {
            System.out.println();
            System.out.println();
            System.out.println("******** Billboard Menu********");
            System.out.println();
            System.out.println("Please select a billboard message from the menu ");

            for (int i = 0; i < billboard.getMessages.size(); i++) {
                System.out.println((i + 1) + ": " + billboard.getMessages().get(i));
            }
            System.out.println(billboard.getMessages().size()+1 + ": Add new message.");
            System.out.println((billboard.getMessages().size() + 2) + ": Show  current text.");
            System.out.println((billboard.getMessages().size() + 3) + ": Exit.");
            System.out.println();
            System.out.print("Choice: ");
            int code = console.nextInt();

            if (code == billboard.getMessages().size()+1) {
                System.out.print("Enter new text here: ");
                String newText = console.next();
                billboard.addNewText(newText);
                System.out.println("The new text has been set to billboard");
            } else if (code == billboard.getMessages().size() + 2) {
                System.out.println("Current text is: " + billboard.getText());

            } else if (code == billboard.getMessages().size() + 3) {
                System.exit(0);
            } else {
                billboard.setText(code);
                System.out.println("The text has been set to billboard.");
            }
        }
    }
}

change getMessages to getMessages();

Akash Rajbanshi
– Akash Rajbanshi

2015-05-24 05:35:35 +00:00
Commented May 24, 2015 at 5:35 — Akash Rajbanshi
– Akash Rajbanshi, Commented May 24, 2015 at 5:35

Akash Rajbanshi · Accepted Answer · 2015-05-24 16:11:37Z

2

Change

for (int i = 0; i < billboard.getMessages.size(); i++) {}

to

for (int i = 0; i < billboard.getMessages().size(); i++) {}

As you have done in:

System.out.println(billboard.getMessages().size()+1 + ": Add new message.");

Edit

If your messages variable is String or related Object type use billboard.getMessages().length()
If your messages variable is List<String> or any other Collection Object type use billboard.getMessages().size()
If your messages variable is Array Type E.g. int[],String[],etc use billboard.getMessages().length

edited May 24, 2015 at 16:11

answered May 24, 2015 at 5:38

Akash Rajbanshi

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6 Comments

nel Over a year ago

Thank you, I made the change, but the error still exists. The size() seems to be the issue as it is underlined in red and the error appears only in the lines where size() is written.

Akash Rajbanshi Over a year ago

what is variable type for messages?

nel Over a year ago

I don't understand, because my variable is List<String>, so it should be working, but it is not.

nel Over a year ago

Cannot find symbol symbol: method size() location Class object

Akash Rajbanshi Over a year ago

can you show the declaration of your variable and check whether it has proper getter/setter method?

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