OnJava8-Examples/exceptions/LoggingExceptions2.java
Bruce Eckel edd99881d7 Narrowed listing widths, fixed output
Also removed Preferences appendix
2017-05-10 11:45:39 -06:00

33 lines
948 B
Java

// exceptions/LoggingExceptions2.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.
// Logging caught exceptions
// {ErrorOutputExpected}
import java.util.logging.*;
import java.io.*;
public class LoggingExceptions2 {
private static Logger logger =
Logger.getLogger("LoggingExceptions2");
static void logException(Exception e) {
StringWriter trace = new StringWriter();
e.printStackTrace(new PrintWriter(trace));
logger.severe(trace.toString());
}
public static void main(String[] args) {
try {
throw new NullPointerException();
} catch(NullPointerException e) {
logException(e);
}
}
}
/* Output:
___[ Error Output ]___
May 09, 2017 6:07:17 AM LoggingExceptions2 logException
SEVERE: java.lang.NullPointerException
at
LoggingExceptions2.main(LoggingExceptions2.java:17)
*/