The following example code reads the Appointments and Task from Exchange. I have used the ews java api with some required dependencies you can download the libraries from the link https://drive.google.com/open?id=1Ujn8GDbX_0EjWx0pcZqAzeMGWykobfOY and execute the program. import java.net.URI; import java.net.URISyntaxException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.HashSet; import java.util.List; import microsoft.exchange.webservices.data.core.ExchangeService; import microsoft.exchange.webservices.data.core.PropertySet; import microsoft.exchange.webservices.data.core.enumeration.misc.ExchangeVersion; import microsoft.exchange.webservices.data.core.enumeration.property.WellKnownFolderName; import microsoft.exchange.webservices.data.core.enumeration.service.DeleteMode; import microsoft.exchange.webservices.data.core.service.folder.CalendarFolder; import microsoft.exchange.webservices.data.core.service.