Java Examples - Read a file


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Problem Description

How to read a file ?

Solution

This example shows how to read a file using readLine method of BufferedReader class.

import java.io.*;

public class Main {
   public static void main(String[] args)  {
      try {
         BufferedReader in = new BufferedReader(new FileReader("c:\\filename"));
         String str;
         
         while ((str = in.readLine()) != null) {
            System.out.println(str);
         }
         System.out.println(str);
      } catch (IOException e) {
      }
   }
}

Result

The above code sample will produce the following result.

aString

The following is another sample example of read a file in Java

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class BufferedReaderExample {
   public static void main(String[] args) {
      try (BufferedReader br = new BufferedReader(
         new FileReader("C:\\\\Users\\\\TutorialsPoint7\\\\Desktop\\\\bbc.txt"))) { 
         
         String sCurrentLine;
         while ((sCurrentLine = br.readLine()) != null) {
				System.out.println(sCurrentLine);
			} 
      } catch (IOException e) {
         e.printStackTrace();
      } 
   }
}  

The above code sample will produce the following result.

BUILD SUCCESSFUL 

java_files.htm

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