code snippet that shows how to create and send an envelope using the DocuSign Java Client

CreateAndSendEnvelope.java

// specify a document we want signed
String SignTest1File = "[PATH/TO/DOCUMENT/TEST.PDF]";

// create a byte array that will hold our document bytes
byte[] fileBytes = null;

try
{
	String currentDir = System.getProperty("user.dir");
	// read file from a local directory
	Path path = Paths.get(currentDir + SignTest1File);
	fileBytes = Files.readAllBytes(path);
}
catch (IOException ioExcp)
{
	// handle error
	System.out.println("Exception: " + ioExcp);
	return;
}

// create an envelope that will store the document(s), field(s), and recipient(s)
EnvelopeDefinition envDef = new EnvelopeDefinition();
envDef.setEmailSubject("Please sign this document sent from Java SDK)");

// add a document to the envelope
Document doc = new Document();  
String base64Doc = Base64.getEncoder().encodeToString(fileBytes);
doc.setDocumentBase64(base64Doc);
doc.setName("TestFile.pdf");    // can be different from actual file name
doc.setDocumentId("1");

List<Document> docs = new ArrayList<Document>();
docs.add(doc);
envDef.setDocuments(docs);

// add a recipient to sign the document, identified by name and email we used above
Signer signer = new Signer();
signer.setEmail("[SIGNER_EMAIL]");
signer.setName("[SIGNER_NAME]");
signer.setRecipientId("1");

// create a signHere tab somewhere on the document for the signer to sign
// default unit of measurement is pixels, can be mms, cms, inches also
SignHere signHere = new SignHere();
signHere.setDocumentId("1");
signHere.setPageNumber("1");
signHere.setRecipientId("1");
signHere.setXPosition("100");
signHere.setYPosition("150");

// can have multiple tabs, so need to add to envelope as a single element list
List<SignHere> signHereTabs = new ArrayList<SignHere>();      
signHereTabs.add(signHere);
Tabs tabs = new Tabs();
tabs.setSignHereTabs(signHereTabs);
signer.setTabs(tabs);

// add recipients (in this case a single signer) to the envelope
envDef.setRecipients(new Recipients());
envDef.getRecipients().setSigners(new ArrayList<Signer>());
envDef.getRecipients().getSigners().add(signer);

// send the envelope by setting |status| to "sent". To save as a draft set to "created"
envDef.setStatus("sent");

try
{
	// use the |accountId| we retrieved through the Login API to create the Envelope
	String accountId = loginAccounts.get(0).getAccountId();
	
	// instantiate a new EnvelopesApi object
	EnvelopesApi envelopesApi = new EnvelopesApi();
	
	// call the createEnvelope() API to send the signature request!
	EnvelopeSummary envelopeSummary = envelopesApi.createEnvelope(accountId, envDef);
	
	System.out.println("EnvelopeSummary: " + envelopeSummary);
}
catch (com.docusign.esign.client.ApiException ex)
{
	System.out.println("Exception: " + ex);
}