Abstraction of standard output and error output streams

Inherited Attributes
Attributes inherited from: Object
hash, string
errorSource Code
shared formal void error(String message)

Write a message on error output stream

exceptionSource Code
shared default void exception(Exception exception)

Write an exception on error output stream

infoSource Code
shared formal void info(String message)

Write a message on information output stream

Inherited Methods
Methods inherited from: Object