Reading From A Text File - Java File Path IO

Java examples for File Path IO:Text File

  1. HOME
  2. Java
  3. File Path IO
  4. Text File

Description

Reading From A Text File

Demo Code

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.text.NumberFormat;

public class ReadFile {
  public static void main(String[] args) {
    NumberFormat cf = NumberFormat.getCurrencyInstance();

    BufferedReader in = getReader("movies.txt");

    Movie movie = readMovie(in);// ww  w  .  j av a2  s.  c o m
    while (movie != null) {
      String msg = Integer.toString(movie.year);
      msg += ": " + movie.title;
      msg += " (" + cf.format(movie.price) + ")";
      System.out.println(msg);
      movie = readMovie(in);
    }
  }

  private static BufferedReader getReader(String name) {
    BufferedReader in = null;
    try {
      File file = new File(name);
      in = new BufferedReader(new FileReader(file));
    } catch (FileNotFoundException e) {
      System.out.println("The file doesn't exist.");
      System.exit(0);
    } catch (IOException e) {
      System.out.println("I/O Error");
      System.exit(0);
    }
    return in;
  }

  private static Movie readMovie(BufferedReader in) {
    String title;
    int year;
    double price;
    String line = "";
    String[] data;

    try {
      line = in.readLine();
    } catch (IOException e) {
      System.out.println("I/O Error");
      System.exit(0);
    }

    if (line == null)
      return null;
    else {
      data = line.split("\t");
      title = data[0];
      year = Integer.parseInt(data[1]);
      price = Double.parseDouble(data[2]);
      return new Movie(title, year, price);
    }
  }

}

class Movie {
  public String title;
  public int year;
  public double price;

  public Movie(String title, int year, double price) {
    this.title = title;
    this.year = year;
    this.price = price;
  }
}

Related Tutorials