What is the difference between the use of will and be going to?

kalau Will itu yang masih direncanakan atau dalam dialog atau percakapan di katakan dengan secara spontan, tetapi tujuannya masih belum pasti.

kalau be going to itu yang sudah pasti.

Answer:
________
WILL
it is used to declare the intention to do something while speaking at that time.

Example:
I will have my meal and drink a glass of orange juice
___________________________
BE GOING TO

It is used to talk about a planned activity for future.

Example:
I am going to see a docter at 7 p.m


*Thanks*