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    <p>Regarding your second part, <a href="http://lekkimworld.com/2007/11/01/sick_of_java_awt_type_ahead_suggestions_in_eclipse.html" rel="nofollow noreferrer">yes you can</a></p> <blockquote> <ul> <li>Open Eclipse</li> <li>Select Window/Preferences from the menu</li> <li>Expand Java/Appearance/Type Filters from the menu on the left</li> <li>Click the "Add package" button, enter "java.awt" (without the quotes) and click OK</li> <li>OK your way out</li> </ul> <p>This will make Eclipse remove any matching classes from the java.awt package from your type ahead list. Very nice...</p> </blockquote> <p>So "type-ahead" exists in Eclipse (mentioned in this <a href="http://dev.eclipse.org/mhonarc/lists/eclipse-dev/msg07539.html" rel="nofollow noreferrer">status report in June 2006</a>), but is synonym of auto-completion, most often triggered by <kbd>CTRL</kbd>+ <kbd>Space</kbd>... (which is not exactly what you are looking for)</p> <hr> <p>To be more specific, the kind of <a href="http://karlshifflett.wordpress.com/2008/02/17/visual-studio-2008-tip-auto-complete-list-members/" rel="nofollow noreferrer"><em>automatic</em> auto-completion</a> (completion while you are typing, with a "Common" or "All" list of possible completions) you have in Visual Studio <del>is not there in Eclipse</del> (actually read below):</p> <p><img src="https://i.stack.imgur.com/KGOHm.jpg" alt="alt text"></p> <p>Original answer January 2010: </p> <blockquote> <p>At least, not without a dedicating plugin.<br> And even with that plugin, it would have to follow a <a href="http://help.eclipse.org/galileo/index.jsp?topic=/org.eclipse.platform.doc.isv/reference/api/org/eclipse/jface/text/templates/TemplateCompletionProcessor.html" rel="nofollow noreferrer"><code>TemplateCompletionProcessor</code></a>, meaning it would need a <strong>list of characters triggering said completion</strong> (again, not what you are looking for), by redefining method <code>getCompletionProposalAutoActivationCharacters()</code>.</p> </blockquote> <p>Update November 2011:</p> <p><a href="https://stackoverflow.com/users/578455/cristi">Cristi</a> mentions in <a href="https://stackoverflow.com/q/4712576/6309">his answer</a> (upvoted) a great workaround, which consists adding all the letters as Auto activation triggers for java.<br> See also "<a href="https://stackoverflow.com/questions/4765054/automatically-opening-completion-window-in-eclipse">Automatically opening completion window in Eclipse</a>".</p> <p>From the thread "<a href="http://rsbuddy.com/forum/eclipse-auto-completion-98270.html" rel="nofollow noreferrer">Eclipse auto-completion </a>":</p> <pre><code>Windows -&gt; Preferences -&gt; Java -&gt; Editor -&gt; Content Assist </code></pre> <blockquote> <ul> <li>Set delay to: 0 (actually >0 is better: 50, it avoids CPU picks because of constant listening) </li> <li>Set triggers to: </li> </ul> </blockquote> <pre> .(abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUV WXYZ@ </pre> <p><img src="https://i.stack.imgur.com/hjzyT.png" alt="content assist options"></p>
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    1. COI know that, and I wrote as part of the question that I didn't want to do this, as it's ridiculous stupid to add all classes in Java to the filter!
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    2. CO@Claus: even if you can enter packages instead? Anyhow, I am not aware of other "auto-completion" mechanisms.
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    3. COAs I wrote, I want to only show the imported packages, not filter out everything I don't need.
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