Integrating Azure AD into a Java web application	Set up OAuth2 authentication in a Java web app.
Calling the Azure AD Graph API in a web application	Read directory data and execute queries from the Azure AD Graph API
Integrating Azure AD into a Java command line using username and password	Obtain a JWT access token through OAuth 2.0, then use the access token to authenticate with a Azure AD protected web API.
Manage users, groups, and roles with the Graph API	Manage users, groups, roles, and service principals with the Graph API using the management API.
Manage Service Principals	Create a service principal for an application, assign it a role, and use the service principal to access resources in the subscription