In this case it was, substring method, which took center stage. Most of us rather just use substring(..), and than forgot. Not every Java programmer go into code, and see how exactly it's working. To get a feel of how his interview was let's start .
HPV: Related Disease. HPV and Genital Warts. Some types of HPV can cause warts on or around the genitals or the anus. The two types that cause most cases of genital warts are 6 and 11. These are low-risk strains and are not associated with cervical cancer.
1 Some types of HPV can cause cervical cancer and other cancers. These are called high-risk types.  Low-risk types of HPV may cause genital warts in the vagina, cervix, and on the skin. The virus and warts spread when you have sex. The HPV-DNA test is generally not recommended for detecting low-risk HPV infections.