Please explain me constructor

Hello all,
could you please exaplain me the meaning of the following constructor:
public class Details {
    Hashtable mapping = new Hashtable();
    Vector values = new Vector();
    char optionChar;
    public Details() {
        this('/');
}Thakns alot

A side-note question: can you legally invoke a
constructor of another signature in C++?I'm pretty sure one can, but I forget the syntax.
Something like:
YourClass::YourClass(args) : this(otherargs),
// additional constructor body here
Someone can correct me if I got it a bit off.http://www.parashift.com/c++-faq-lite/ctors.html#faq-10.3

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