Incorrect username password 3 times java login form -

this code have. reads text file , compares users input. how add if username , password entered 3 times something. have tried putting counter in many places doesn't work. counter go?

 boolean login = false;   while(read.nextline() !=null){     string user = read.next();     string pass = read.next();     read.next();   if(usernamet.gettext().equals(user) &&      passwordt.gettext().equals(pass)){   login = true;   break;                     }  } if(login) new menu(); else { joptionpane.showmessagedialog(null, "incorrect  username or password"); usernamet.settext(""); passwordt.settext("");  } 

  int counter = 3;  boolean login = false;   while(counter > 0 && read.nextline() !=null){     string user = read.next();     string pass = read.next();     read.next();   if(usernamet.gettext().equals(user) &&      passwordt.gettext().equals(pass)){   login = true;   break;                     }    --counter;  }