Call Array List Method

Question

I wanted to use a method that can be accessed by the main, that will store the array list. But I want the declaration of the array list to be in the main not the store method.

Out side this method ill be using simple JOptionPanes to display the array list in the main.

Example here.

public static void main(String[] arg) throws Exception
{
 ArrayList<String> Logo = new ArrayList<String>();

    Initials();

    public String Initials()
    {
        Logo.add("Blah blah");
        Logo.add("Blah blah");
    }

    JOptionPane.showMessageDialog(null, Logo);
}

Please help me I'm not sure how to due this. I want to store it because it take a lot of the space and is kinda a eye sore. Ill be storeing a lot in the array list.

Or a different better way of doing this

It's not very clear what you're trying to do. You can't declare a method inside a method. Why not just populate the list normally? — shmosel
– shmosel, Commented Feb 9, 2017 at 4:01
Because there are about 60 full lines of code that I populated the list in the main it was just a lot I want it easy for my professor to read. If their is a better way to do this but simple enough, Ill be for it. — D Rodriguez
– D Rodriguez, Commented Feb 9, 2017 at 4:05
Your problem isn't clear and the code doesn't compile. Consider creating an MCVE — default locale
– default locale, Commented Feb 9, 2017 at 5:57

John Kugelman · Accepted Answer · 2017-02-09 13:58:14Z

3

Methods don't nest. The helper method would go before or after main. You can do this by passing the list to the method.

public static void main(String[] arg) throws Exception
{
    ArrayList<String> logo = new ArrayList<String>();

    initialize(logo);

    JOptionPane.showMessageDialog(null, logo);
}

private void initialize(ArrayList<String> logo)
{
    logo.add("Blah blah");
    logo.add("Blah blah");
}

edited Feb 9, 2017 at 13:58

answered Feb 9, 2017 at 4:06

John Kugelman

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GeorgeDopeG · Accepted Answer · 2017-02-09 04:07:41Z

1

You can have the arraylist in the main, but also you can create method outside of main and reference that arraylist to it like this:

public static void main(String[] arg) throws Exception
{
ArrayList<String> Logo = new ArrayList<String>();

Initials(Logo);


}
public static String Initials(ArrayList <String> Logo)
{
    Logo.add("Blah blah");
    Logo.add("Blah blah");
    return ("blah");
}

answered Feb 9, 2017 at 4:07

GeorgeDopeG

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