Hi everyone,

I am having trouble with getting output from the console onto a file, for example a .TXT. I suspect that I have to make use of the System.out function, but I can't quite figure out how I might use it. Thanks for the help

You can use " java.io" package classes to do that.

First: import java.io.*;

Then you need to read from the console:

try
{
//create a buffered reader that connects to the console, we use it so we can read lines
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));

//read a line from the console
String lineFromInput = in.readLine();

//create an print writer for writing to a file
PrintWriter out = new PrintWriter(new FileWriter("output.txt"));

//output to the file a line
out.println(lineFromInput);

//close the file (VERY IMPORTANT!)
out.close();
}
catch(IOException e)
{
System.out.println("Error during reading/writing");
}

If you need more programming help visit www.NeedProgrammingHelp.com or email me at NeedProgrammingHelp@hotmail.com

is it possible to type in a class as a .txt file and then
print out:


system.out.println "this is true"

as This is true on the cmd???

tell me how please..

my books have given progs to write nad see output and i can't see output althougt all progs are running and compling...

thanks in advance!!!

>is it possible to type in a class as a .txt file and then print out:
You better explain what you mean by this. To help you here is few examples

• get user input from console and then store it in file
• get user input through some Swing components and store it in the file
• read another file and either store it all or just part of it in new file

PS: You should post your code so we can see what you actualy trying to do. Please use code tags to post any code.

Hi,,

what i meant was... I have written out a class in a .txt file...
I got a portion that said:
{
System.out.println"this is true";
}

Now i compiled my program on my cmd, and get the .class file in my folder in C drive.

I want to see the out put of my program on my cmd screen.... I want to see

"this is true"
written out theere...

and i don' tknow how.

I write :
javac DooBee.java ->it gets compiled and i get my DooBee.class file.

but now how do i get to see my sentence written out where i wanted it to print?
I want to see the output of the class i wrote to see if my program was not only compiled right but can make some sense to mee too!

this is my program.:

class DooBee
{
public static void main (String args[] )
{
int x=1;
while (x<3)
{
System.out.print("Doo");
System.out.print("Bee");
x=x+1;
}
if(x==2)
System.out.print("Do");
}
}




I hope this is clearer.

Thanks

java DooBee
at the cmd to "run" the file .class

Exception in thread "main" java.lang.NoClassDefFoundError: DooBee


this is what i got.

You need to start with the most basic "getting started" tutorial: http://java.sun.com/docs/books/tutor...ava/win32.html

And do not post new questions to the end of other people's old threads. Post a new thread of your own if you have a question.