Compare two text file

Question

i am comparing two text file by checking occurance of a line in file 1 by comparing it with each line in file 2(not line by line)
i have to print in 3rd text file as difference
please see my progrm and tell me modification required
package comp.vnet.comparator;
import java.io.*;
import comp.vnet.comparator.NewFile;
class FileComparator {
     public static void main(String[] args) throws IOException{
          String file1,file2,String1,String2;
          BufferedReader br1,br2;
          int fileCount1=0;
          int fileCount2=0;
          br1= new BufferedReader(new InputStreamReader (System.in));
          // File file = new File ("output.txt");
          FileWriter fstream = new FileWriter("out.txt");
          // FileOutputStream fo = new FileOutputStream("E:/Filecomparator/FileComparator/output.txt");
          System.out.println("Enter First file name");
          file1="b.txt";
          //file1=br1.readLine();
          System.out.println("Enter Second file name");
          file2="a.txt";
          //file2=br2.readLine();
          NewFile nf= new NewFile();
          br1=nf.creatingFile(file1);
          br2=nf.creatingFile(file2);
while ((String1= br1.readLine()) != null) {
     fileCount1++;
while ((String2= br2.readLine()) != null) {
     fileCount2++;
System.out.println("fileCount1+ : " + fileCount1);
System.out.println("fileCount2+ : " + fileCount1);
br1=nf.creatingFile(file1);
BufferedWriter out = new BufferedWriter(fstream);
for(int i=0;i<=fileCount1;i++)
     br2=nf.creatingFile(file2);
     String1=br1.readLine();
     for(int j=0;j<fileCount2;j++)
               String2=br2.readLine();
                    if ( String1.equals (String2) ) {
                         System.out.println("the line is equal");
                    else{
                    out.write(String1);
                         System.out.println(String1);
out.close();
br1.close();
br2.close();
          }

Answer 1

thanks alot for that reply
but there is some error
pleasse send me a nice reply