Android (Java) Learning Note 82: How do we handle exceptions?

How exactly should we handle exceptions?

Principle:

If the problem can be handled inside the function, you can solve the problem yourself by using try .

If we can't handle it, we leave it to the caller to handle it, and This is a problem that can't be solved with throws, and we'll just throw it out and give it to the caller to solve the problem (and ultimately , to the JVM)

Difference:

Subsequent programs need to continue to run on the try

Subsequent programs do not need to continue to run throws

Example:

If you have a cold, just take some medicine on your own.

Try to eat for a few days the medicine is not good results have a throws, then the hospital

If the hospital doesn't have a cure, it becomes an error.

Android (Java) Learning Note 82: How do we handle exceptions?