最新の1Z0-869問題集で試験を準備する

Which two are true for List? (Choose two.)

• A. Images and text in a List CANNOT be changed once the List is created.
• B. Traversing and scrolling in a List causes events that can be programmatically detected.
• C. A CommandListener must be registered for the application to recognize user selections in a List.
• D. You can add Command objects to a List without registering a CommandListener.

Which is true about CLDC support for accessing system property information?

• A. CLDC supports a subset of java.util.Properties.
• B. Property information is available in CLDC using System.getProperty().
• C. CLDC supports a subset of java.util.Properties and also provides additional property information using System.getProperty().
• D. Full support for java.util.Properties is available within CLDC.

Given:
a JAR containing a MIDlet named TesterMIDlet
a JAD with this content:
CertificationExam: Sun Certified Mobile Application DeveloperMIDlet-1: TesterMIDlet, , certification.TesterMIDlet MIDlet-Jar-Size: 2038 MIDlet-Jar-URL: Certification.jar MIDlet-Name: Certification MIDlet-Vendor: A Testing Company MIDlet-Version: 1.0 MicroEdition-Configuration: CLDC-1.0
MicroEdition-Profile: MIDP-2.0
This MIDlet needs to get the property with the key CertificationExam defined in the JAD.
This needs to be assigned to a String ExamName from within the MIDlet.startApp() method.
What is the correct way to accomplish this?

• A. String ExamName = System.getProperty("CertificationExam");
• B. String ExamName = System.getProperty("MIDlet-CertificationExam");
• C. String ExamName = this.getAppProperty("MIDlet-CertificationExam");
• D. String ExamName = this.getAppProperty("CertificationExam");

A MIDlet is written to use the media features available in MIDP 2.0. What change is required to use the MIDlet on a device that supports the full MMAPI?

• A. No change is necessary. The MIDP's media API is a proper subset of MMAPI.
• B. The creation of Player objects must be modified.
• C. The MIDlet CANNOT be used under MMAPI.
• D. Any tone generation code should be removed.

The binding of networking protocols to a MIDlet at runtime can be compared to a type of relationship. Which relationship most closely matches the binding?

• A. application and device drivers
• B. caller and callee
• C. specification and implementation
• D. mark and sweep