Installing the Twilio library for Salesforce's Apex programming language is a little different.

To add the library to your installation, go to https://login.salesforce.com/packaging/installPackage.apexp?p0=04ti0000000XkE0, click on Continue, and then follow the instructions.

In your code, you'll then just need to create a client object (client.cls):

String accountSid = 'ACXXXXXXXXXXXXXXXXX';
String authToken = 'YYYYYYYYYYYYYYYYYY';

TwilioRestClient client = new TwilioRestClient(accountSid, authToken);

To send an SMS, much like with the Ruby and Python libraries, we pass in a hash (or in Apex, a Map) of arguments (send_sms.cls), like this:

Map<String,String> params = new Map<String,String> {
  'To'   => '+441708300116',
  'From' => '+441290211999',
  'Body' => 'This is an SMS message.'};TwilioSMS message =...