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Language: Java
Expertise: Intermediate

Apr 23, 2001

In a big project involving several classes, logging error messages can be required. There are several ways to do this, but a simple approach is to open the log file in append mode, add the messages to it and then close the file. However, writing to a file is a costly process and several threads trying to access the same file at the same time may create problem. This is one way of improving that particular logging method:

 
package abc;

import java.io.*;

public class Logger {

	private static String message ;

	public Logger() {
		super();
		message =