Steps to deploy file.war in ElasticBeansTalk

I try to deploy a file.war in my Elastic Beanstalk Account via eclipse java code..while creating an application with CreateApplicationRequest i have to specify the location of the source file..My question is ,should i create first an Simple storage Bucket and i add my war file into it, then call it with

    String S3Bucket="amazonaws.com";
     String S3Key="SampleServlet.war";

     S3Location s=new S3Location(S3Bucket,S3Key);

    CreateApplicationVersionRequest v=new CreateApplicationVersionRequest(appName,description);
        v.setVersionLabel(versionLabel);
            v.setSourceBundle(s);

    eb.createApplicationVersion(v);

?? Can you help me Please ..