JobTracker.java

/*  
 * Class called Emailer to send email alerts
 */
public class Emailer {
      public String generateJobAlert(String job) {
          String alert = "You are alerted for " + job;
          return alert;
      }
  }
  
/*  
 * Class called Phone to send phone alerts
 */
  public class Phone {
      public String generateJobAlert(String job) {
          String alert = "You are alerted for " + job;
          return alert;
      }
  } 
  

/*  
 * Class called JobTracker.
 * This class initializes both the Phone & Email class
 * This is a violation of the DIP principle
 */
  public class JobTracker {
      private Phone phone;
      private Emailer emailer;

      public JobTracker() {
          phone = new Phone();
          emailer = new Emailer();
      }

/*  
 * Based on the jobDescription, the alert is sent
 * This logic should not be implemented here!
 */    
      public void setCurrentConditions(String jobDescription) {
          if (jobDescription == "urgent") {
              String alert = phone.generateJobAlert(jobDescription);
              System.out.print(alert);
          }
          if (jobDescription == "brief") {
              String alert = emailer.generateJobAlert(jobDescription);
              System.out.print(alert);
          }
      }
  }