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Android Build a Weather App (2015) Concurrency and Error Handling Making Our Code Asynchronous

Janelle Boyd
Janelle Boyd
1,833 Points

When would you want to use synchronous processing?

Could you please provide an example of when someone building an app would ever want to use synchronous processing?

2 Answers


Synchronous programming is mainly done when you have to control the order of operations and know the outcome of each operation before moving to the next. The first one that comes to mind is working with banking transactions where you need to be sure that a deposit was completed before you can allow them to remove the money. If the first doesn't complete but you allow them to remove the money they thought they just deposited in check form, you might be giving out money their account doesn't have.

That's just one. I'm sure other students can come up with more examples.


Andrew Sheragy
Andrew Sheragy
16,379 Points

Isn't the answer to this just whenever you don't need asynchronous processing? Which is a majority of time.