File Comparison in JAVA

Below is the code for File Comparison in JAVA: 

import java.io.BufferedReader;

import java.io.FileReader;

import java.io.IOException;

 

public class CompareTextFiles

{

    public static void main(String[] args) throws IOException

    {

        BufferedReader reader1 = new BufferedReader(new FileReader("C:\\FileCompare\\File1.txt"));

         

        BufferedReader reader2 = new BufferedReader(new FileReader("C:\\FileCompare\\File2.txt"));

         

        String line1 = reader1.readLine();

         

        String line2 = reader2.readLine();

         

        boolean areEqual = true;

         

        int lineNum = 1;

         

        while (line1 != null || line2 != null)

        {

            if(line1 == null || line2 == null)

            {

                areEqual = false;

                 

                break;

            }

            else if(! line1.equalsIgnoreCase(line2))

            {

                areEqual = false;

                 

                break;

            }

             

            line1 = reader1.readLine();

             

            line2 = reader2.readLine();

             

            lineNum++;

        }

         

        if(areEqual)

        {

            System.out.println("Two files have same content.");

        }

        else

        {

            System.out.println("Two files have different content. They differ at line "+lineNum);

             

            System.out.println("File1 has "+line1+" and File2 has "+line2+" at line "+lineNum);

        }

         

        reader1.close();

         

        reader2.close();

    }

}