import java.io.FileInputStream;
import java.io.FileNotFoundException;

public class FileCompare {

FileCompare(String pFile1, String pFile2){// ya try catch yapcaksın yada throws Exception yapcaksın
// iki dosya okucamız icin iki dosya acıyoruz(handler)
try {
FileInputStream fis1 = new FileInputStream(pFile1);
FileInputStream fis2 = new FileInputStream(pFile2);

boolean same = true;

int i , j;

do{
i = fis1.read();
j = fis2.read();
if ( i != j )
{
same = false;
break;
}
}while( i!= -1 && j!=-1 );

if (same && i==j)
System.out.println( “files are same”);
else
System.out.println( “files are NOT identical”);
fis1.close();
fis2.close();
} catch (Exception e) {
System.out.println( e.toString() );
}

}

public static void main(String[] args) {
try{
new FileCompare(“c:\\test1.txt”, “c:\\test2.txt”);

}catch(Exception e){
e.printStackTrace();
}
}