Each validation control displays an error message if the object does not meet the specified criteria
Answer the following statement true (T) or false (F)
True
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Declare a pointer variable called “ptr” that can point to a memory address of type integer.
What will be an ideal response?
The java.lang.Number and its subclasses are introduced in Chapter 11. Analyze the following code.
Number numberRef = new Integer(0); Double doubleRef = (Double)numberRef; a. There is no such class named Integer. You should use the class Int. b. The compiler detects that numberRef is not an instance of Double. c. A runtime class casting exception occurs, since numberRef is not an instance of Double. d. The program runs fine, since Integer is a subclass of Double. e. You can convert an int to double, so you can cast an Integer instance to a Double instance.
What kind of a portal is a search engine?
(a) Vertical portal. (b) Horizontal portal. (c) Community portal. (d) Shopping portal.
Centering a page vertically is when you center the text between the top and ________ margins
Fill in the blank(s) with correct word