DYNAMIC HANDLING IN FILE SYSTEM IN JAVA WITH EXMPLE

Dynamic handling of file system :

It is a concept provided in java which is used for

Creating a new file in a file system

Writing data into a file

Reading data from a file

To do the same in java we have 5 predefined classes

File

FileReader

BufferedReader

FileWriter

BufferedWriter

Demonstration of file reading :

importjava.io.BufferedReader;

importjava.io.BufferedWriter;

importjava.io.File;

importjava.io.FileReader;

importjava.io.FileWriter;

importjava.io.IOException;

publicclassaaaaaaaaaaa {

        publicstaticvoid main(String[] args) throwsIOException {

                File f=newFile("f:\\javafile.txt");

                f.createNewFile(); // new file will be created

        FileWriterfw=newFileWriter("f:\\javafile.txt");

                BufferedWriterbw=newBufferedWriter(fw);

        bw.write("hai go to f drive and check me ");

        bw.newLine();

                bw.write(" hai !!! i am here..");

                bw.flush();

                FileReaderfr =newFileReader("f:\\javafile.txt");

                BufferedReaderbr=newBufferedReader(fr);

                booleanvar=br.ready();

                System.out.println(var);

                while (br.ready())

                {

                        String s = br.readLine();

                        System.out.println(s);

                       

                }

               

                                } 

        }