To wrap it up, examine the general structure of the program, in Listing 1. For reasons of clarity, I shortened the code shown here with a short description of each method.

Some memory leaks occur due to program errors in which infinite loop in the application code allocates new objects and adds them to a data structure accessible from outside the program loop scope.

The real body of a program is descriptions of its algorithms, structure, purpose, and usage -- the source code that implements it is almost incidental.