Java Io flows to specified file input content, javaio

Java Io flows to specified file input content, javaio

Package com. hp. io;

Import java. io .*;

Public class BufferedWriterTest {

Public static void main (String args []) {

FileWriter fw = null;

BufferedWriter bw = null; // buffer output

FileReader fr = null;

BufferedReader bw = null; // buffer input

Try {

Fw = new FileWriter ("f :\\ discard bar .txt"); // file to be written

Bw = new BufferedWriter (fw); // Save the input content in the buffer zone.

Bw. write ("HelloWorld"); // write content

Bw. newLine (); // change the line

Bw. write ("Hello, world ");

Bw. newLine ();

Bw. flush (); // refresh the buffer

// Read the content in the buffer

Fr = new FileReader ("f :\\ discard folder .txt"); // be sure to keep the file name consistent with the one you write.

Br = new BufferedReader (fr); // read the buffer content

String line = br. readLine ();

While (line! = Null ){

System. out. print (line );

Line = br. readLine ();

}

Fr. close (); // close the data stream

} Catch (IOException e ){

System. out. print ("the file does not exist ");

} Finally {

Try {

If (fw! = Null)

Fw. close ();

If (br! = Null)

Br. close ();

If (fr! = Null)

Fr. close ();

} Catch (IOExeption e ){

E. printStackTrace ();

}

}

}

}