Read Text File in Java using Scanner Class

 Previously I have posted about reading text file using FileInputStream and BufferedReader. This post shows how to read text files in java using the Scanner class.

This is a sample text file

and this is the java code to read text files using the Scanner class

1. package client;
3. import java.io.File;
4. import java.io.FileNotFoundException;
6. import java.util.Scanner;
8. public class ReadFileScn {
9. public ReadFileScn() {
10. super();
11. }
13. public static void main(String[] args) {
14. // Absolute path of file that you want to read
15. File f = new File("D:/sampleFile.txt");
16. Scanner s = null;
17. try {
18. s = new Scanner(f);
19. } catch (FileNotFoundException e) {
20. }
22. //Iterate over file content
23. while (s.hasNextLine())
24. System.out.println(s.nextLine());
25. }
27. }

Execute this java code

Output is

Cheers 🙂 Happy Learning

Read Text File in Java using BufferedReader

 Previously I have posted about reading text file using FileInputStream and this post shows how to read text files in java using BufferedReader class.

This is a sample text file

and this is the java code to read a text file using BufferedReader class

1. package client;
3. import java.io.BufferedReader;
4. import java.io.File;
5. import java.io.FileNotFoundException;
6. import java.io.FileReader;
7. import java.io.IOException;
9. public class ReadFileBfr {
10. public ReadFileBfr() {
11. super();
12. }
14. public static void main(String[] args) {
15. // Absolute path of file that you want to read
16. File f = new File("D:/sampleFile.txt");
18. BufferedReader bfr=null;
19. try {
20. bfr = new BufferedReader(new FileReader(f));
21. } catch (FileNotFoundException e) {
22. }
24. String data;
25. //Iterate over file content
26. try {
27. while ((data = bfr.readLine()) != null)
28. System.out.println(data);
29. } catch (IOException e) {
30. }
31. }
32. }

Execute this java code

Output is

Cheers  Happy Learning

Read text file in Java using FileInputStream

Recently I have seen some questions about reading text file content on the OTN forum, though it is a very simple task still some find it confusing. That’s why here I am showing how to read text files in java using FileInputStream

This is a sample text file

and here goes the java code to read text file using FileInputStream

1. package client;
3. import java.io.File;
4. import java.io.FileInputStream;
5. import java.io.IOException;
7. public class ReadFileJava {
8. public ReadFileJava() {
9. super();
10. }
12. public static void main(String[] args) {
13. // Absolute path of file that you want to read
14. File f = new File("D:/sampleFile.txt");
15. FileInputStream fis = null;
17. try {
18. fis = new FileInputStream(f);
20. int data;
21. //Iterate over file content
22. while ((data = fis.read()) != -1) {
23. System.out.print((char) data);
24. }
26. } catch (IOException ioe) {
27. ioe.printStackTrace();
28. } finally {
29. try {
30. if (fis != null)
31. fis.close();
32. } catch (IOException ioe) {
33. ioe.printStackTrace();
34. }
35. }
36. }
37. }

Run this code

And output is

Cheers  Happy Learning