If you are running Intellij or any other IDEs, pass these as Program arguments from Run/ Debug Configurations.
1. CreateTable : HelloWorld (create new table HelloWorld with a simple primary key: "Name")
2. PutItem : HelloWorld Tahniat age=31 (creates new entry in the HelloWorld table with pk name=Tahniat & age=31)
3. GetItem : HelloWorld Tahniat (retrieves the row from HelloWorld table having pk name=Tahniat)
4. DeleteItem : HelloWorld Tahniat (deletes a row from HelloWorld table having pk name=Tahniat)
5. Query : HelloWorld Name Tahniat (queries on a partition key (pk/gsi). Here it queries on table HelloWorld over the pk name where name is Tahniat)
Assuming you've got dynamoDB running at your port 8000 (pre-requisite), go to http://localhost:8000/ to see the changes live!