Convert plain text to HTML text in Java

Question

I have java program, which will receive plain text from server. The plain text may contain URLs. Is there any Class in Java library to convert plain text to HTML text? Or an

Answer 1

Just joined the coded from all answers:

private static String txtToHtml(String s) {
        StringBuilder builder = new StringBuilder();
        boolean previousWasASpace = false;
        for (char c : s.toCharArray()) {
            if (c == ' ') {
                if (previousWasASpace) {
                    builder.append(" ");
                    previousWasASpace = false;
                    continue;
                }
                previousWasASpace = true;
            } else {
                previousWasASpace = false;
            }
            switch (c) {
                case '<':
                    builder.append("<");
                    break;
                case '>':
                    builder.append(">");
                    break;
                case '&':
                    builder.append("&");
                    break;
                case '"':
                    builder.append(""");
                    break;
                case '\n':
                    builder.append("
");
                    break;
                // We need Tab support here, because we print StackTraces as HTML
                case '\t':
                    builder.append("     ");
                    break;
                default:
                    builder.append(c);

            }
        }
        String converted = builder.toString();
        String str = "(?i)\\b((?:https?://|www\\d{0,3}[.]|[a-z0-9.\\-]+[.][a-z]{2,4}/)(?:[^\\s()<>]+|\\(([^\\s()<>]+|(\\([^\\s()<>]+\\)))*\\))+(?:\\(([^\\s()<>]+|(\\([^\\s()<>]+\\)))*\\)|[^\\s`!()\\[\\]{};:\'\".,<>?«»“”‘’]))";
        Pattern patt = Pattern.compile(str);
        Matcher matcher = patt.matcher(converted);
        converted = matcher.replaceAll("$1");
        return converted;
    }