Write a file without passing in arguments

**Miles Runner** · 25-02-2010

Hello,
I want to know how to write a file without passing in arguments. Let me explain: I would like to direct the file name. Txt instead of args [0]

Code:

  Public static void hand(String args[]) throws IOException
  {
    PrintWriter wr;
    wr =  new PrintWriter(new BufferedWriter(args[0]));

If you have a solution for this then I am interested , thanks for the help.

**InterNetWorKed** · 25-02-2010

Hello,
This is in your post

Code:

Let me explain: I would like to direct the file name. Txt instead of args [0]

You have given yourself the solution

Code:

    writer =  new PrintWriter(new BufferedWriter("file.txt"));

I hope you are understanding the things going on here, if not then you can read the documentation on the java.io package on the sun's official site. Read first and then do some programs in it.

**Gunner 1** · 25-02-2010

Hello,
I am interested in the post and I have tried how to do this but I was not successful. I tested it but there's nothing written in file.txt

Code:

  Public static void hand() throws IOException
  {
    PrintWriter wr;
    int n = 5;
    wr =  new PrintWriter(new BufferedWriter(new FileWriter("file.txt")));
   
    wr.System.out.println("hello, how goes it?");
    wr.close();
  }

**WinDoWLoCuS** · 25-02-2010

Hello,
I think this is very simple and you should do it within few minutest, you can simply put the following code.

Code:

 wr =  new PrintWriter(new BufferedWriter(new FileWriter("file.txt", true)));

It means that we add text and false that replaces the one in your code. I hope you understood what I am trying to explain you. If you need any more help on this , that is regarding this topic then feel free to post.

**HardWeaR** · 25-02-2010

Hello,

Code:

It means that we add text and false that replaces

I do not think so, true to say that we wrote at the end of the file, and false otherwise. You do not specify in the argument true, you write to each performance at the beginning of your file) What was there before, may be partially or completely crushed. So, you have to be careful when you are writing the code.

**Miles Runner** · 25-02-2010

Hello,
I think I have solved my problem, by the way thanks for you help. I still have a little problem. at each execution of my program, which was in the file.txt file disappears. How to keep what is in the file? And also how to show the extension of the file. If you know how to do this then please help on with this. Thank you in advance.