[Eranga]

Few error there. Defining variables as local or global is depend on the way you implementing the application.

Look at this code.

Code:

import java.io.*;

/**
 *
 * @author Eranga
 */
public class ReadFile {

    FileInputStream fiStream;
    DataInputStream diStream;
    BufferedReader br;

    public static void main(String[] args) {
        // TODO code application logic here
        new ReadFile().readFile();
    }

    public void readFile() {
        try {
            fiStream = new FileInputStream("D:\\jazz\\CSV\\abcd.txt");
            diStream = new DataInputStream(fiStream);
            br = new BufferedReader(new InputStreamReader(diStream));
            
            String ss;
            
            while((ss = br.readLine()) != null){
                System.out.println(ss);
            }
        } 
            
        catch (IOException ex) {
            System.out.println(ex.getLocalizedMessage());
        }
    }
}