try – catch – finally

■ A try can appear with no catch, but with just a finally. i.e.

■ The scope of catch’s variable is confined to the catch block itself.

■ The most general exception goes LAST in a catch block.

The compiler won't allow you to mistakenly put the most general exception first.

■ The EXCEPTION e part of the catch statement must go in parens. ie. catch ( IOEXCEPTION e ) { }

finally

■ finally is (almost) always executed, even if there’s no exception thrown. (see next item below)

■ The only exception to the above rule is when System.exit(...); is called above the finally.

■ finally is executed just before any return statement appearing above it. Then the return. So any return code on the return isn’t sent out until after the finally.

■ finally is executed even if an outside method called by the try block throws an unknown or uncaught exception.