Pattern finding
You need to group sales by platform generation for a trend analysis. By extracting version numbers from platform names, you can categorize sales across different console generations. You've extracted some platform names from the video game dataset.
The necessary packages such as CharMatcher, and Pattern have been imported for you.
Deze oefening maakt deel uit van de cursus
Cleaning Data in Java
Oefeninstructies
- Check if the
matcherfinds any version number. - Report the version number that the
matcherfinds.
Praktische interactieve oefening
Probeer deze oefening eens door deze voorbeeldcode in te vullen.
public class PatternValidation {
public static void main(String[] args) {
List platforms = Arrays.asList("PlayStation 5", "PlayStation 4", "Xbox One", "Switch");
Pattern versionPattern = Pattern.compile("\\d"); // Match single digit versions
for (String platform : platforms) {
Matcher matcher = versionPattern.matcher(platform);
// Check if the matcher finds any version number
if (____.____()) {
// Report the version number that the matcher finds
System.out.println(platform + ": version " + ____.____());
} else {
System.out.println(platform + ": no version number");
}
}
}
}