Formatting a LinkedHashMap

Question

I am trying to reformat the output of a LinkedHashMap to exclude the commas and curly braces.

Here is what I have for my puts:

token.put("[Server.Protocol]", url.getProtocol() + "\n");
token.put("[Server.hostName]", url.getHost() + "\n");
token.put("[Server.Port]", url.getPort() + "\n");
values.add(token.toString());

token is my LinkedHashMap and values is my LinkedList.

Here is my output:

{[Server.Protocol]=https
, [Server.Name]=myserver
, [Server.Port.HTTPS]=123
}

Here is what I want:

[Server.Protocol]=https
[Server.hostName]=myserver
[Server.Port]=123

Here is my print method:

private void webconfigToINI() throws IOException {
    File fout = new File(propFile);

    try {
        FileOutputStream fos = new FileOutputStream(fout, true /* append */);

        writer = new PrintWriter(fos);
        if (fos.getChannel().size() == 0)
            writer.print("[Code]\n");
        for (String value : values) {
            //writer.print(value.substring(1, value.length()-1));
            writer.print(value);
        }
        // writer.print("[Code]\n");
        writer.flush();
        writer.close();
        fos.close();
    } catch (Exception e) {
        throw e;
    }
}

Answer 1

Instead of calling toString on your map you can use this:

String string = token.entrySet()
                      .stream()
                      .map(e -> e.getKey() + "=" + e.getValue())
                      .collect(Collectors.joining());

If you can't use Java 8 then you have to iterate and joining your data retrieving them from the map using entrySet(), as the following code:

String string = "";
for (Map.Entry<String, String> value: token.entrySet()) {
    string = string + value.getKey() + "="+value.getValue();
}