Mulai sekarangMulai gratis

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 merupakan bagian dari kursus

Cleaning Data in Java

Lihat Kursus

Instruksi latihan

  • Check if the matcher finds any version number.
  • Report the version number that the matcher finds.

Latihan interaktif langsung praktik

Cobalah latihan ini dengan melengkapi kode contoh ini.

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");
            }
        }
    }
}
Edit dan Jalankan Kode