Untitled

Creating a file and writing to it
package InputOutput;

import java.io.*;

public class CharacterFileReaderAndFileWriter{

private BufferedReader br = null;
private BufferedWriter bw = null;
private PrintWriter pw = new PrintWriter(System.out, true);

public File createFile() throws IOException{
    File f = new File("test.txt");
    return f;
}

public void writeToFile() throws IOException{
    try{
        bw = new BufferedWriter(new FileWriter(createFile()));
    }
    catch(FileNotFoundException ex){
        ex.printStackTrace();
    }

    //take input from the console (user)
    br = new BufferedReader(new InputStreamReader(System.in));
    String s;

    pw.println("Please enter something");
    pw.println("To stop the program, enter 'stop'");

    do{
        s = br.readLine();
        if(s.compareTo("stop")==0)
            break;
        s+= "rn";//adding an new line to the string s
        bw.write(s);
    }
    while(s.compareTo("stop")!=0);

    br.close();
    bw.close();

}

public static void main(String[] args) throws IOException{

    CharacterFileReaderAndFileWriter cfr = new CharacterFileReaderAndFileWriter();
    cfr.writeToFile();
}

if(s.compareTo("stop")==0)

if ("stop".equalsIgnoreCase(s))

s+= "rn";//adding an new line to the string s
    bw.write(s);

bw.write(System.getProperty("line.separator"));
    bw.write(s);