napisałem takie coś:
public static String getRank(String address) throws IOException {
URL url = new URL(address);
BufferedReader reader = null;
try {
reader = new BufferedReader(new InputStreamReader(url.openStream()));
String line = null;
while ((line = reader.readLine()) != null) {
int start = line.indexOf("<title>");
int end = line.indexOf("</title>");
if (start != -1) {
return line.substring(start + "<title>".length(), end);
}
}
return "";
} finally {
if (reader != null) {
reader.close();
}
}
}
i dla title działa ale jak robie zamiast <title> <body> to wywala błąd tutaj:
return line.substring(start + "<title>".length(), end);
Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: -11
at java.lang.String.substring(String.java:1955)
at com.gmail.dekros1123.bot.Main.getRank(Main.java:61)
at com.gmail.dekros1123.bot.Main.main(Main.java:74)
jak to naprawic?