Inheritance

• Consider a class called FileParser which is equipped with methods for parsing text occurrences like tag = value in text files
• We now want a class HTMLPage representing an HTML page with all links
• HTMLPage will need to parse an HTML (text) file to find links; these are found by looking at occurrences like HREF="url"
• It is best to keep the text file parsing data/methods and HTML-specific parts independent
• HTMLPage can inherit the public data/methods from FileParser:
  class HTMLPage : public FileParser {...} ;