Hello aspirant

hope you are doing well and safe. With reference to your query,  I would glad inform you that their are some unique difference btw applets and applications . Following are some of them:-

Applications are just like a Java programs that can be execute independently without using the web browser. Applets are small Java programs that are designed to be included with the HTML web document. Application program requires a main function for its execution. whereas  applets doesnt require main function

Hope you found this answer informative. Best wishes for your future