java - BufferedReader reads only once -


i'm tryin read configuration file , strings file. configuration file used determine if content in string file correct.

i created package named stringacceptor, part of code follows:

    public static boolean isaccepted(file config, file lines_file, string string) throws exception {      //bufferedreader para obtener las líneas del archivo     conf = new bufferedreader(new filereader(config));     //bufferedreader para determinar la cantidad de líneas en el archivo     lines = new bufferedreader(new filereader(lines_file));      //validación de archivo de configuración del afd      while(lines.ready()){         lines.readline();         line_number = line_number + 1;     }      while(conf.ready()){         try{

here start reading lines , assigning values corresponding variables

then created java file use package , send information stringacceptor determine if string accepted or not. code class uses package follows. after importing needed package , determining option excecutes either of options:

                    case 1:                             system.out.print("\ninsert configuration file name: ");                             path = br.readline();                             archivo = new file(path);                             if(archivo.isfile()){                                 system.out.print("\ninsert string verified: ");                                 string string = br.readline();                                 if(stringacceptor.isaccepted(archivo, archivo, string)){                                     system.out.println("\naccepted!\n");                                 } else{                                     system.out.println("\nnot accepted.\n");                                 }                             } else {                                 system.out.println("\nfile not exist.\n");                             }                             break;                     case 2:                             system.out.print("\ninsert configuration file name: ");                             path = br.readline();                             archivo = new file(path);                             if(archivo.isfile()){                                 system.out.print("\ninsert name of string file verified: ");                                 string string = br.readline();                                 strings = new file(string);                                 if(strings.isfile()){                                     bufferedreader sfile = new bufferedreader(new filereader(strings));                                     while(sfile.ready()){                                         if(stringacceptor.isaccepted(archivo, archivo, sfile.readline())){                                             system.out.println("\naccepted!\n");                                         } else {                                             system.out.println("\nnot accepted.\n");                                         }                                     }                                 } else{                                     system.out.println("\nfile not exist.\n");                                 }                             } else {                                 system.out.println("\nfile not exist.\n");                             }                             //archivo.delete();                             break;                     case 3:                             exit = true;                             break;                     default:                             system.out.println("\ninvalid option.\n");

whenever excecute code following menu:

1) verify string 2) verify string file 3) exit insert option:

now, no matter option pick first or configuration file use first, excecute correctly first time, everytime after won't go inside while(conf.ready()) conditional, never read lines , return falsebecause of it.

hope edit made more understandable.

get rid of ready() tests. not valid use test end of stream. that's not it's for. see javadoc. read until readline() returns null:

while ((line = in.readline()) != null)

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