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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.

Este exercicio faz parte do curso

Cleaning Data in Java

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Instruções do exercicio

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

exercicio interativo prático

Tente este exercicio completando este código de exemplo.

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");
            }
        }
    }
}
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