Java and Javaw

[NeilV]

Hello...

I have developed a simple java program and part of its functionality is to write to a text file. When i run the program from the windows command prompt using the "Java" command, the program works fine and writes to a text file as expected. However, when i run the program using the "javaw" command the program runs fine apart from the fact it does NOT write to the text file...

Any ideas why this is happening?

Neil

 

[sedj]

file names, directories, or file permissions are probably your problems without seeing your code ...

 

[NeilV]

Sedj,

The code i am using is:

import java.io.*;
import java.util.*;
import java.text.*;


public class LogWriter{


private String appName;

/*
*Constructor
*/
public LogWriter(String appName){

this.appName = appName;

}

//write the entry into the log file.
//requires the text that is to be entered and the location
//from where the entry originates.
public void writeToLog(String location, String text){

File logFile = new File(getFileName());
BufferedWriter out;


String currentDateTime = DateFormat.getDateTimeInstance().format(new Date());


try{
//find out if the file exists, if so then just add
//the log entry to it else
if (logFile.exists() ==true){

out = new BufferedWriter(new FileWriter(logFile,true));

} else{

out = new BufferedWriter(new FileWriter(logFile,false));
}


out.write("\n" + currentDateTime + "#:" + location + " " + text + "\r");
out.flush();
out.close();

}catch(Exception e){}


}

/*
* Get the filename to write to.
* Filename will is a rolling number,
* where the number is the day of the month.
*
*/
private String getFileName(){

String currentDay;
String filename;

DateFormat dateText = DateFormat.getDateInstance(DateFormat.SHORT); //create time format

Date now= new Date();

currentDay = dateText.format(now);

currentDay = currentDay.substring(0,2);

filename = appName + currentDay + ".log";


return filename;



}



}

It is just a simple class to log events from a program.

Neil