Java ignited a revolution when Sun transitioned it to the Web in 1994, and although Java has been reasonably successful on the client (the user's machine), Java on the server became very popular. When a Java program is launched from a Web page, the program is called a Java applet..
It means that the breed has been over-breed. The female is breed over and over, too often and without proper testing. I have heard of lots of Cocker Spaniels with genetic eye problems from over/improper breeding. Overbred is when a dog has litters back to back, usually every 6 months.
In this case where a parti carrier is bred to another parti carrier, 25% of the offspring will be traditional Yorkies (not carrying the gene), 50% will be traditional colored Yorkies who do carry the recessive parti gene and 25% of the offspring will be actual Parti colored dogs.