People sometimes do that when their code is reasonably abstract. For example, usual convention for generic type in Java is something like T. https://docs.oracl

People sometimes do that when their code is reasonably abstract. For example, usual convention for generic type in Java is something like T. https://docs.oracle.com/javase/tutorial/java/generics/types.html https://docs.oracle.com/javase/tutorial/java/generics/types....