trouble writing file

[fred baby]

hello, i'm using visual j++ (unfortunately). i am simply looking to write some data collected in the program i have written to a .txt file. i have never encountered problems with this usually simple task, however, i have also never encountered visual j++ in all its ignominy. anyway, the following code is placed in a class that extends JPanel.
PrintWriter out;
...some lines later:
try{
out = new PrintWriter(new FileWriter("output.txt"));
}
catch (Exception IOException){
System.out.println("exception");
}
and later...
out.println("test.");
simple enough...it would seem. anyone know of any reasons why output.txt wouldn't show "test." when i open it after closing out the program? it is console based, but driven within classes inheriting JFrame/JPanel. thanks in advance.
n

[Rene Larsen]

did you flush the outputstream before closing?
e.g. out.flush();
/Rene

[Gareth Willmott]

im only a beginner myself so if this is wrong Please dont shout at me people
This was just working with writing integers to a file mine and not strings but the method i would presume is pretty similar. The code i used to write my list of numbers to an external file was :
public static void saveFile (int[]a,int count)throws IOException

PrintWriter outFile;
outFile = Text.create("Numbers.dat");
// Change Numbers.dat for your file name
for(int i=0; i < count;i++)
{
outFile.println(a[i]);
}
outFile.println(-1);
outFile.close();

}//End Save File
Sorry if this is off the point but i thought it might help , :roll:

[Snigdha Solanki]

Nothing seems to look wrong in your code. Are you sure you are checking output.txt at the right place?
The following code worked for me.

import java.io.*;
import java.util.*;
import javax.swing.*;
class Test extends JPanel{
public static void main(String args[]){
PrintWriter out = null;
try{ 
out = new PrintWriter(new FileWriter("output.txt"));
}
catch (Exception IOException){
System.out.println("exception");
}
out.println("test.");
out.close();
     
}
}
  

[fred baby]

got it. it was a problem with accessing from a key event handler. thanks for the help.