Eclipse dot does not auto suggest

I am using Eclipse 3.7.1 classic.

When I type a class, it does not show the auto suggest. I dont know why, before it can pop up the function.

I have not changed any configuration of the eclipse.

For example,开发者_高级运维 when I type System, it does not pop up the auto suggest, like out.println.

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Go to Preferences->Java->Editor->Content Assist. Make sure you have "Enable Auto activation" Checked

If it doesn't work, go to Advanced section: Java->Editor->Content Assist->Advanced
In the "Select the proposal kinds contained in the 'default' content assist list", have "Java Proposals" Checked
OR
Restore Defaults, Apply and it should work.

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Start eclipse with the -clean parameter to delete old stored values.

If you installed new plugins you should disabled them in the prefrences-> workspace and see if one is blocking the GUI.

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This can happen if you have a syntax error that you have not noticed higher up in the class, such as forgetting to close a method with a } or missing a terminating ";".

Try the same in a new project. If you still have the problem I'd try the suggestion by "Udo Fholl".