eclipse java content assist

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2If you would like to use autocomplete all the time without having to worry about hitting Ctrl + Spacebar or your own keyboard shortcut, you can make the following adjustment in the Eclipse preferences to trigger autocomplete simply by typing several different characters:
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4    Eclipse > Preferences > Java > Editor > Content Assist
5    Auto Activation > Auto activation triggers for Java
6    Enter all the characters you want to trigger autocomplete, such as the following:
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8abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ._
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10Now any time that you type any of these characters, Eclipse will trigger autocomplete suggestions based on the context.