Folks:

For example, HelloWorld.java prints out "Hello World" to standard output (screen display) . How can I write another java program to capture the output "Hello World" after HelloWorld.java is executed? I just don't want to use a temp file to store the data.

Can somebody provide me couple lines of code as a hint?

Thanks a lot !!!

gangchen

Not quite sure what you mean with capture but im gonne assume you want to print Hello World to a file instead of the Screen...

This would look like the following:

import java.io.*;
class HelloWorldOutput
{
public static void main(String args[])
{
//declare output stream
FileOutputStream out;
//Declare PrintStream
PrintStream p;

try
{
//open OutputStream
out = new FileOutputStream("myfile.txt");
//Link PrintStream to out
p = new PrintStream(out);

//capture text
p.println("Hello World");
//Close Stream
p.close();
}
catch(Exception e)
{
System.err.println("File Output Error");
}
}
}

This code should write Hello World into a text file in the same folder where your .class file is located. If you have any questions bout the code above let me know :)

Hope it helped
~TuGG~