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Help on extracting last part of an array

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Hello all, I have a quick question I would like to ask.
I have been given an exercice where I have addresses, and I have to extract the ZIP code on it. Here it is
class Assignement6
{
public static void main (String []args)
{

String Address[] = {"17, 3FR, Rue Bonaparte, 75001", "9, 4FL, Rue Joseph Bara, 75006", "85, 2FL, Rue Rivoli, 75004", "75, 4FR, Rue De L'Opera, 75012", "29, 9FR, Rue Port-Royal, 75018", "59, 1FL, Rue Pierre Nicole, 75005", "58, 7FR, Rue Monge, 75002", "15, 6FR, Rue Voltaire, 75006", "111, 13FL, Rue Auguste, 75004", "53, 4FR, Rue Des Saints-Pere, 75008"};

String ZIPStr; //variable to hold zip as a string

int ZIPInt; //variable to hold zip as int


for(int i=0; i<Address.length; i++)
{
ZIPStr= Address[i].length-6;
}


System.out.println(ZIPStr);






}
}



So I basically need to get the 750.. into a variable and then print it. How may I do that?
Thanks a lot

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