Question

Class person{

  int name;

};

I have a scenario here in which i’m parsing a set of Person objects from an arraylist.

I need to concatenate all the name(member variable) for the objects in the arraylist seperated by an “or”.

I have tried some conventional ways of adding an “or” at the end of each concatenation and
removing one “or” from the end of the string.
I know this is no good programming.

Answer 1

this is indeed the way to go. I assume you have an arraylist since you tagged it, you can use:

public static String join(Collection data, String delimiter) {
    final StringBuffer buffer = new StringBuffer();
    final Iterator iter = data.iterator();
    while (iter.hasNext()) {
        buffer.append(iter.next());
        if (iter.hasNext()) {
            buffer.append(delimiter);
        }
    }
    return buffer.toString();
}

// in your code:
join(personList, " or ");