Question

I’ve been struggling with my first regex. During the compile, Pattern and Matcher kept getting cannot find symbol errors.

I just changed import java.util.* to import java.util.regex.* and it works like a dream.

I was under the impression that importing java.util.* would also bring in java.util.*.* etc. Is that not the case? I can’t find any documentation that addresses this specific question….

Answer 1

Yes, that is how package imports work (and are supposed to work) in Java. For example, doing import javax.swing.*; will import all classes within javax.swing.* but not sub-packages and their classes.

Ergo, javax.swing.* will not import javax.swing.event or javax.swing.event.*

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