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When I'm typing import statements in Eclipse a list of auto-complete options are given, but when I select one, it adds a wildcard for the whole package, e.g. org.apache.*, but I want to auto-complete the just the package name and continue typing a sub-package or class, e.g. org.apache.log4j.Logger
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Wildcard imports tell java compiler to search for class names in the given package. Hence, using wild card imports, the compile-time performance may lower a bit.
In fact, the book recommends using wildcard imports when using multiple classes from the same source. In other words, when we import two or more classes imported from a package, it's better to import the whole package.
In above situation, Eclipse comes with a nice feature called “Organize Imports” to imports all the classes that are used, automatically. A copied source code without imports.
Disable wildcard importsIn the Settings/Preferences dialog ( Ctrl+Alt+S ), select Editor | Code Style | Java | Imports. Make sure that the Use single class import option is enabled.
Eclipse has a setting for the number of imports needed in order to stop listing the classes one by one and use the package.* syntax instead.
You can change that setting by going to Window>Preferences>Java>Code Style>Organize Imports.
Put a large number into the edit boxes at the bottom.
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Rather than typing individual import statements by hand, consider just typing the names of classes where you need them, then using Content Assist (Ctrl+Space or Command+Space on OS X) and let Eclipse auto-insert the import statement for you automatically. It won't use a wildcard import unless you've configured it to do that at a certain threshold (see @f1sh's answer).
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