Recursive String Method Trace

Consider the following recursive method.

public static void whatsItDo(String str)
{
    int len = str.length();
    if (len > 1)
    {
        String temp = str.substring(0, len - 1);
        whatsItDo(temp);
        System.out.println(temp);
    }
}

What is printed as a result of the call whatsItDo("BATCH")?