Java Programming | Reading a Text File.

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Introduction.

This is a tutorial for reading string from a txt file. The program reads the string from the file and prints it on the screen. The program is extendable. Go enjoy the program. Lets begin…

Program for Reading a string from a txt file.

//import these as we require them.
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
 
// the name of our class its public
public class ReadFile {
    //void main
    public static void main(String args[])throws IOException{
 
        //declare the BufferedReader obj
        BufferedReader r = new BufferedReader(new FileReader("file.txt"));
          //String
          String a;
          //read
          a = r.readLine();
          //print the string.
          System.out.println("The txt file contains:-");
          System.out.println(a);
       }
}

Output

The txt file contains:- hello

How does it work

The program reads the string from txt file and prints it.

Extending it

The program can be extended. This is a basic concept of java programming and has lots of applications.

Explanation.

  1. Import those 3 things.
  2. Declare the class as public
  3. Add the void main function
  4. Declare reader object.
  5. Declare a String.
  6. Read the line.
  7. Add system.out.println() function to print the string.

At the end.

You learnt creating the Java program for Reading the txt file. So now enjoy the program.

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