Question

I have a method which returns an ArrayList in my Android app. Everything works great, but one thing annoys the heck out of me. When I print out the ArrayList in my TextView it looks like this:

[firstValue
, secondValue
, thirdValue
]

How can I remove [ and , from the output?

Answer 1

You might want this:

public String formatList(List<?> list) {
    StringBuilder b = new StringBuilder();
    for(Object o : list) {
        b.append(o);
    }
    return b.toString();
}

The toString() method of the lists (and other collections) is mainly for debugging output.