READ Free Dumps For Oracle- 1z0-803
| Question ID 21943 | Which two may precede the word "class" in a class declaration?
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| Option A | local
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| Option B | public
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| Option C | static
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| Option D | volatile
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| Option E | synchronized
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| Correct Answer | B,C |
Explanation Explanation: B: A class can be declared as public or private. C: You can declare two kinds of classes: top-level classes and inner classes. You define an inner class within a top-level class. Depending on how it is defined, an inner class can be one of the following four types: Anonymous, Local, Member and Nested top-level. A nested top-level class is a member classes with a static modifier. A nested top-level class is just like any other top-level class except that it is declared within another class or interface. Nested top-level classes are typically used as a convenient way to group related classes without creating a new package. The following is an example: public class Main { static class Killer {
| Question ID 21944 | Which three are bad practices?
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| Option A | Checking for ArrayindexoutofBoundsException when iterating through an array to determine when all
elements have been visited
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| Option B | Checking for Error and. If necessary, restarting the program to ensure that users are unaware problems
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| Option C | Checking for FileNotFoundException to inform a user that a filename entered is not valid
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| Option D | Checking for ArrayIndexoutofBoundsExcepcion and ensuring that the program can recover if one occur
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| Option E | Checking for an IOException and ensuring that the program can recover if one occurs
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| Correct Answer | A,B,E |
Explanation Explanation: A, E: Better to check if the index is within bounds. B: Restarting the program would not be a good practice. It should be done as a last possibility only. Incorrect answers: Checking for FileNotFoundException and IOException exceptions are good practices.