I am trying to make a database of sorts but with Java. I am using Arraylists to store raw customer data as they are dynamic. However, I am currently using multiple arraylists to store each variable (ID, Name, Age). My question is, would it be possible to store more than one variable separated with underscores as a customer e.g. String Customer = "A12\_Charlie\_32"? I would imagine that it would have something to do with Stringreader or this:

```
for (int index = 0; index < string1.length(); index++) {
    char aChar = string1.charAt(index);
}

```

If anybody has any ideas, I would be very grateful.