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.
Latihan ini adalah bagian dari kursus
Cleaning Data in Java
Petunjuk latihan
- Check if the
matcherfinds any version number. - Report the version number that the
matcherfinds.
Latihan interaktif praktis
Cobalah latihan ini dengan menyelesaikan kode contoh berikut.
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");
}
}
}
}