How to read and compare content of two different text file

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How to read and compare content of two different text file
Posted on: July 6, 2010 at 12:00 AM

In this tutorial you will see how to read and compare content of two different text file.

Description:

In the given example you will see how a two text file's content are compared. The BufferedReader
class allow us to read a file. The readLine() method used to read the contents of the specified file.
The way of comparison is in such a way that it takes content of a file and assign it to as a string and
then compare it with the other file's content which too assigned as string..

Code:


import java.io.*;

import java.util.*;



public class FileRead {

  public static void main(String[] args) throws java.io.IOException {



    BufferedReader bfr2 = new BufferedReader(new InputStreamReader(

        System.in));

    System.out.println("Enter File name:");

    String str = bfr2.readLine();

    System.out.println("Enter another file name:");

    String str1 = bfr2.readLine();



    String s1 = "";

    String s2 = "", s3 = "", s4 = "";

    String y = "", z = "";



    BufferedReader bfr = new BufferedReader(new FileReader(str));

    BufferedReader bfr1 = new BufferedReader(new FileReader(str1));



    while ((z = bfr1.readLine()) != null)

      s3 += z;



    while ((y = bfr.readLine()) != null)

      s1 += y;



    System.out.println();



    System.out.println(s3);



    if (s3.equals(s1)) {

      System.out.println("Content of both files are same");

    } else {



      System.out.println("Content of both files are not same");

    }

  }

}

Output:

Download this code

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