OnJava8-Examples/exceptions/LoggingExceptions.java
2016-12-30 17:23:13 -08:00

49 lines
1.3 KiB
Java

// exceptions/LoggingExceptions.java
// (c)2017 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.
// An exception that reports through a Logger
// {ErrorOutputExpected}
import java.util.logging.*;
import java.io.*;
class LoggingException extends Exception {
private static Logger logger =
Logger.getLogger("LoggingException");
public LoggingException() {
StringWriter trace = new StringWriter();
printStackTrace(new PrintWriter(trace));
logger.severe(trace.toString());
}
}
public class LoggingExceptions {
public static void main(String[] args) {
try {
throw new LoggingException();
} catch(LoggingException e) {
System.err.println("Caught " + e);
}
try {
throw new LoggingException();
} catch(LoggingException e) {
System.err.println("Caught " + e);
}
}
}
/* Output:
___[ Error Output ]___
Jul 27, 2016 10:50:30 AM LoggingException <init>
SEVERE: LoggingException
at
LoggingExceptions.main(LoggingExceptions.java:20)
Caught LoggingException
Jul 27, 2016 10:50:30 AM LoggingException <init>
SEVERE: LoggingException
at
LoggingExceptions.main(LoggingExceptions.java:25)
Caught LoggingException
*/