Eclipse的代碼自動完成(Code Automatic completion)配置

Today my colleague tells me with one tip regarding Eclipse auto completion setting, which I think is useful in my daily life.

There are lots of standard classes and those class/method created on my own, however when I type some characters there is no auto completion drop down list. For example I have already created one method named 「consumeABAPFM」, however even after I type 「consum」, there is still not any auto completion function provided.

However, by choosing 「Windows->Preference->Java->Editor->Content Assistant」, we can achieve what we expect.
Maintain 「Auto activation triggers for JAVA」 with value 「.ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz」.

After that whenever we type some characters the auto completion drop down list will be there and refreshed with 200 ms.

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