Online Access Free 1Z0-869 Exam Questions

Given:
DataInputStream incoming
Connector.openDataInputStream("sms://+3125551234:3434");
Which is true?

• A.The port number indicated is a protected SMS port.
• B.Port numbers are NOT allowed in SMS URLs.
• C.The + in the URL is positioned incorrectly.
• D.MessageConnection does NOT support InputStream objects.

Assuming an application descriptor contains: MIDlet-Data-Size: 4096 Which is true?

• A.The device will use 4096 bytes to buffer data the application receives over the network.
• B.The device will use 4096 bytes to buffer data the application sends over the network.
• C.The device will permanently reserve 4096 bytes of RMS space for the application.
• D.The device will permanently reserve 4096 bytes of heap space for the application.

Which two are true regarding error handling for classes that exist in both CLDC and J2SE?
(Choose two.)

• A.If a class throws an error in CLDC, it should throw the same error as in J2SE or its nearest superclass.
• B.The set of error classes is much reduced in CLDC to help reduce the overhead of the JVM.
• C.The set of error classes is essentially the same in CLDC and J2SE.
• D.There is no correspondence between the errors defined by CLDC and J2SE because the needs of CLDC and J2SE are so different.

Given:
5 0. class MyGameCanvas extends Canvas {
5 1. //...
6 0. public MyGameCanvas() {
6 1. int width1 = getWidth();
6 2. int height1 = getHeight();
6 3. //...
7 0. setFullScreenMode(true);
7 1. //...
8 0. int width2 = getWidth();
8 1. int height2 = getHeight();
8 2. //...
9 0. }
What is true about width1, height1 and width2, height2?

• A.width1 is always equal to width2.
• B.The system tries to provide maximum visible area to the MIDlet and these dimensions are width2, height2.
• C.The call to setFullScreenMode() is ignored because the dimensions have already been set.
• D.height1 is always equal to height2.

Given the MIDlet code:
3 . public void go() {
4 . try {
5 . doStuff();
6 . } catch(java.lang.IllegalAccessError e) {
7 . aForm.append("An Error");
8 . }
9 . }
Assuming the aForm variable on line 7 is a correctly initialized Form and set to the current display, what is the result?

• A.The MIDlet fails at runtime due to a problem on line 7.
• B.Compilation fails due to a problem on line 7.
• C.The MIDlet fails at runtime due to a problem on line 6.
• D.An Error is printed to the display if an IllegalAccessError occurs.
• E.Compilation fails due to a problem on line 6.