How do you create a character class with JavaScript?
What will be an ideal response?
You use acharacter classin a regular expression to treat multiple characters as a single item. You create a character class by enclosing the characters that make up the class within bracket[]metacharacters. Any characters included in a character class represent alternate characters that are allowed in a pattern match. As an example of a simple character class, consider a word with alternative spellings, such as "analyze" (U.S.) or "analyse" (British). The following code uses a character class to check for either spelling of this word by specifying that eithersorzcould be the sixth character in the string:?var wordPattern =/analy[sz]e/;var testResult = wordPattern.test("analyse"); // truetestResult = wordPattern.test("analyze"); // true
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Which of the following statements is false?
a. Most things you can do in Scene Builder also can be accomplished in Java code. b. To create a custom ListView cell format, you must first define a subclass of the ListCell that specifies how to create a ListView cell. c. As the ListView displays items, it gets ListView cells from its cell factory. d. You’ll use the ListView’s setCellFactory method to replace the default cell factory with one that returns objects of the ListCell subclass. You override this class’s updateItem method to specify the cells’ custom layout and contents.
Evaluation, formatting, expanding/decoding, distillation/reduction, and assessment are examples of ________ computing operations.
A) ?OpenStack ? B) ?cloud C) ?fog ? D) ?RFID
What exception type does the following program throw?
``` public class Test { public static void main(String[] args) { Object o = null; System.out.println(o.toString()); } } ``` a. ArithmeticException b. ArrayIndexOutOfBoundsException c. StringIndexOutOfBoundsException d. ClassCastException e. NullPointerException
Suppose A is an interface, B is a concrete class with a no-arg constructor that implements A. Which of the following is correct?
a. A a = new A(); b. A a = new B(); c. B b = new A(); d. B b = new B();