public void unlockPremiumFeatures() { if (validateLicenseKey()) { // Unlock premium features System.out.println("Premium features unlocked"); } else { System.out.println("Invalid license key"); } } } To use the Clean Master license key feature, developers can create an instance of the CleanMasterLicenseKey class and call the unlockPremiumFeatures() method:
public class CleanMasterLicenseKey { private String licenseKey; clean master license key
public boolean validateLicenseKey() { // Implement license key validation logic here // For demonstration purposes, assume the license key is valid return true; } } else { System.out.println("Invalid license key")