The ErrorManager : Log « Log « Java Tutorial

The ErrorManager is used to handle any errors that occur.

The error manager defines a single method:

void error(String msg, Exception ex, int code)

The codes are defined as static integers in the ErrorManager class and are listed in the following table.

Error CodeDescription
CLOSE_FAILUREUsed when close() fails
FLUSH_FAILUREUsed when flush() fails
FORMAT_FAILUREUsed when formatting fails for any reason
GENERIC_FAILUREUsed for any other error that other error codes don't match
OPEN_FAILUREUsed when open of an output source fails
WRITE_FAILUREUsed when writing to the output source fails

35.1.1.A full list of levels.
35.1.2.Logging a Method Call
35.1.3.Logging an Exception
35.1.4.The StreamHandler serves chiefly as a base class for all handlers that write log messages to some OutputStream.
35.1.5.The ConsoleHandler writes log messages to System.err.
35.1.6.The SocketHandler writes log messages to the network over a specified TCP port.
35.1.7.The FileHandler is able to write to a single file, or write to a rotating set of files as each file reaches a specified maximum size.
35.1.8.The FileHandler class supports filename patterns.
35.1.9.The MemoryHandler is a circular buffer in memory.
35.1.10.The ErrorManager
35.1.11.Information Logging
35.1.12.Log to a file
35.1.13.Guaranteeing proper class and method names
35.1.14.Preventing a Logger from Forwarding Log Records to Its Parent