Question

I’m sort of new to programming so I’m sure this is an easy answer.

Basically, in my main method I want to do this:

…

wordtime = new LabelField("" + DataStored.words[0]);

…

Now in the DataStored class I have:
…

public static String[] words;
{
    words = new String[2];

    words[0] = "Oil sucks!";
    words[1] = "Do you know that I can talk?";
}

…

So everytime I try to compile the program, it is getting stopped at the main class by saying that DataStored.words[0] is null. How can I get it to populate the fields from the other class? Thank you in advance!

Answer 1

You’re initializing words in a non-static initialization block in DataStored. This means that words won’t be initialized until you actually construct an instance of DataStored, which is probably not what you want.

You need to make the initialization block static, like this:

public static String[] words;
static { // <---------------------
    words = new String[2];

    words[0] = "Oil sucks!";
    words[1] = "Do you know that I can talk?";
}

This will cause the block to be run when the DataStored class is loaded.