ソースコードの操作と編集

public class EmailMissionSpecialist {
   // Public method
   public void sendMail(String address, String subject, String body) {
      // Create an email message object
      Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage();
      String[] toAddresses = new String[] {address};
      mail.setToAddresses(toAddresses);
      mail.setSubject(subject);
      mail.setPlainTextBody(body);
      // Pass this email message to the built-in sendEmail method 
      // of the Messaging class
      Messaging.SendEmailResult[] results = Messaging.sendEmail(
                                new Messaging.SingleEmailMessage[] { mail });
      // Call a helper method to inspect the returned results
      inspectResults(results);
   }
   // Helper method
   private static Boolean inspectResults(Messaging.SendEmailResult[] results) {
      Boolean sendResult = true;
      // sendEmail returns an array of result objects.
      // Iterate through the list to inspect results. 
      // In this class, the methods send only one email, 
      // so we should have only one result.
      for (Messaging.SendEmailResult res : results) {
         if (res.isSuccess()) {
            System.debug('Email sent successfully');
         }
         else {
            sendResult = false;
            System.debug('The following errors occurred: ' + res.getErrors());                 
         }
      }
      return sendResult;
   }
}

EmailMissionSpecialist em = new EmailMissionSpecialist();
em.sendMail('Enter your email address', 'Flight Path Change', 
   'Mission Control 123: Your flight path has been changed to avoid collision '
   + 'with asteroid 2014 QO441.');

   <p>Greetings, fellow humans! What’s your status?</p>

<apex:page sidebar="false">
<!--Flight Systems Checklist Visualforce Page-->
   <h1>Checklist</h1>
   <apex:form id="engineReadinessChecklist">
      <apex:pageBlock title="Flight Systems Checklist">
         <!--First Section-->
         <apex:pageBlockSection title="Engines">
            <!--Adding Checkboxes-->
            <apex:inputCheckbox immediate="true"/>Engine 1
            <apex:inputCheckbox immediate="true"/>Engine 2
            <apex:inputCheckbox immediate="true"/>Engine 3
            <apex:inputCheckbox immediate="true"/>Engine 4
            <apex:inputCheckbox immediate="true"/>Engine 5
            <apex:inputCheckbox immediate="true"/>Engine 6
         </apex:pageBlockSection>
         <!--Second Section-->
         <apex:pageBlockSection title="Fuel Tanks">
            <apex:inputCheckbox immediate="true"/>Tank 1
            <apex:inputCheckbox immediate="true"/>Tank 2
            <apex:inputCheckbox immediate="true"/>Tank 3
            <apex:inputCheckbox immediate="true"/>Tank 4
            <apex:inputCheckbox immediate="true"/>Tank 5
            <apex:inputCheckbox immediate="true"/>Tank 6
         </apex:pageBlockSection>
         <apex:pageBlockButtons>
            <!--Adding Save Button-->
            <apex:commandButton value="Save" action="{!save}"/>
         </apex:pageBlockButtons>
      </apex:pageBlock>
   </apex:form>
</apex:page>