Vertically Scrollable Table - links don't work

Chapter Topic Videos Comments
  1. Ch 1 Text
  2. Code
  3. Setup Instructions
 Object & Classes    
  1. Ch 2 Text
  2. Code
 Relationships between Classes  
  1. Ch 3 Text
  2. Code
 Inheritance    
  1. Ch 4 Text
  2. Code in Ch 3 Code
 ArrayList    
  1. Ch 5 Text
  2. Code
 Abstract Classes & Interfaces    
  1. Ch 6 Text
  2. Code
 Exception Handling    
  1. Ch 7 Text
  2. Code
 Text File I/O    
  1. Ch 8 Text
  2. Code
 Collections: Lists & Sets    
  1. Ch 9 Text
  2. Code
 Maps    
  1. Ch 10 Text
  2. Code
 Recursion    
  1. Ch 11 Text
  2. Code
 Graphical User Interfaces (GUI)