| T? - a nullable type | On slide | In textbook | 
| TemperatureWatcher, example class | On slide | In textbook | 
| template | On slide | In textbook | 
| template, generics | On slide | In textbook | 
| terminate program - after error | On slide | In textbook | 
| Test Driven Development | On slide | In textbook | 
| Test of class Set | On slide | In textbook | 
| Test of Object-oriented programs | On slide | In textbook | 
| Test Recommendations in your Project | On slide | - | 
| Test Scaffolding | On slide | In textbook | 
| Test Units | On slide | In textbook | 
| Test Utopia | On slide | In textbook | 
| Testability | On slide | In textbook | 
| TextReader | On slide | In textbook | 
| TextReader, Reader/Writer overview | On slide | In textbook | 
| TextWriter | On slide | In textbook | 
| TextWriter, Reader/Writer overview | On slide | In textbook | 
| The abstract class Stream in C#  | On slide | In textbook | 
| The Background and Context of Unit Testing | On slide | In textbook | 
| The class LinkedListNode<T> | On slide | In textbook | 
| The class BinaryReader | On slide | In textbook | 
| The class BinaryWriter | On slide | In textbook | 
| The class Encoding | On slide | In textbook | 
| The class ObjectSet | On slide | In textbook | 
| The class System.Exception in C# | On slide | In textbook | 
| The class TextReader | On slide | In textbook | 
| The class TextWriter | On slide | In textbook | 
| The classes IntSet and StringSet | On slide | In textbook | 
| The classes StringReader and StringWriter | On slide | In textbook | 
| The Common Language Infrastructure | On slide | In textbook | 
| The Composite design pattern  | On slide | In textbook | 
| The Console class | On slide | In textbook | 
| The current object - this | On slide | In textbook | 
| The Decorator Pattern | On slide | In textbook | 
| The Decorator Pattern and Streams | On slide | In textbook | 
| The Decorator Pattern at Run Time | On slide | In textbook | 
| The Die Class | On slide | In textbook | 
| The Directory and DirectoryInfo classes | On slide | In textbook | 
| The extension of class specialization | On slide | In textbook | 
| The File and FileInfo classes | On slide | In textbook | 
| The fragile base class problem | On slide | In textbook | 
| The generic class Set<T> | On slide | In textbook | 
| The hierarchy of exceptions in C# | On slide | In textbook | 
| The highly responsible program | On slide | In textbook | 
| The intension of class extensions | On slide | In textbook | 
| The Interface ICollection<T> | On slide | In textbook | 
| The interface IDictionary<K,V> | On slide | In textbook | 
| The Interface IEnumerable<T> | On slide | In textbook | 
| The Interface IList<T> | On slide | In textbook | 
| The interface ITaxable | On slide | In textbook | 
| The iterator behind a yield | On slide | In textbook | 
| The Iterator Design Pattern | On slide | In textbook | 
| The method LogTransaction in class BankAccount | On slide | In textbook | 
| The most important members in class Stream | On slide | In textbook | 
| The non-generic collection library in C# | On slide | In textbook | 
| The observer design pattern | On slide | In textbook | 
| The Overall Picture | On slide | In textbook | 
| The Overall Picture  | On slide | In textbook | 
| The Principle of Substitution | On slide | In textbook | 
| The Singleton pattern | On slide | In textbook | 
| The Stream Concept | On slide | In textbook | 
| The technical basis of LINQ | On slide | - | 
| The top of the class hierarchy | On slide | In textbook | 
| The try-catch statement C# | On slide | In textbook | 
| The using control structure | On slide | In textbook | 
| The Visitor design pattern | On slide | In textbook | 
| The XML Documentation Language for C# | On slide | In textbook | 
| this | On slide | In textbook | 
| this(...) - between head and body in constructors | On slide | In textbook | 
| this, C# indexer | On slide | In textbook | 
| throwing an exception | On slide | In textbook | 
| Time Classes | On slide | In textbook | 
| Time complexity overview: Collection classes  | On slide | In textbook | 
| Time complexity overview: Dictionary classes  | On slide | In textbook | 
| TimeSpan, struct in System namespace | On slide | In textbook | 
| ToggleTop, Stack operation | On slide | In textbook | 
| Tool support: Doxygen | On slide | In textbook | 
| Tool support: Other possibilities | On slide | In textbook | 
| Tool support: The C# Compiler | On slide | In textbook | 
| top - no single top in real systems | On slide | In textbook | 
| top down programming | On slide | In textbook | 
| Toss (method in class Die) | On slide | In textbook | 
| ToString | On slide | In textbook | 
| ToString, method in class Object | On slide | In textbook | 
| total test | On slide | In textbook | 
| touching an exception | On slide | In textbook | 
| Towards a Visitor solution | On slide | In textbook | 
| Towards Object-oriented Programming | On slide | In textbook | 
| transportation, means of, concepts | On slide | In textbook | 
| Triangle | On slide | In textbook | 
| true, new operator in C# | On slide | In textbook | 
| true, overloaded operator | On slide | In textbook | 
| TrueForAll, member in List | On slide | In textbook | 
| try-catch in C# | On slide | In textbook | 
| Try-catch with a finally clause | On slide | In textbook | 
| try-catch-finally | On slide | In textbook | 
| try-finally, behind using | On slide | In textbook | 
| TryGetValue, member in IDictionary | On slide | In textbook | 
| TryGetValue, member in IDictionary | On slide | In textbook | 
| type (in definition of class) | On slide | In textbook | 
| type constraint, generics | On slide | In textbook | 
| type conversion | On slide | In textbook | 
| type dispatching | On slide | In textbook | 
| type of methods, delegates | On slide | In textbook | 
| type parameter, formal and actual | On slide | In textbook | 
| Type test and type conversion in C# | On slide | In textbook | 
| typeof, new operator in C# | On slide | In textbook | 
| typeof, operator | On slide | In textbook | 
| Types | On slide | In textbook |