如何在Eclipse中为可选的Java异常生成代码

Question

I have some code that is parsing an int from a string:

int number = Integer.parseInt(a[0]);

there is no guarantee that the string I will receive is well formed and this may throw a NumberFormatException. However, as this exception is optional, Eclipse does not give me a light bulb for generating it.

Is there a menu or context menu option to wrap an exception of a method beneath the cursor or carrot?

Answer 1

It wont as NumberFormatException is a RuntimeException .

Imagine all the hard work eclipse would have to do to catch null pointer exceptions.Eclipse would only tell you about checked Throwables

Answer 2

Highlight the block you want to enwrap, go to the top menu under Source . Choose Surround with Try / Catch Block .

It will automatically indent the code and list the found exceptions. I think the NumberFormatException will be listed automatically.

This is basically the same as with UncheckedExceptions, except that with UncheckedExceptions Eclipse will automatically highlight the line as it is a Java Error to ignore (not catch nor rethrow) a checked exception. You probably have used the QuickFix Menu (usually STRG+1 as hotkey, or mouse hover over the error). The menu item above will work even without an error (and thus no error you could use QuickFix for)