Classes from which objects can be instantiated are called ____________ classes.
Fill in the blank(s) with the appropriate word(s).
concrete
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What years are displayed in the list box by the following program segment?
``` Dim years() As Integer = {1492, 1776, 1840, 1929, 1945, 2005} Dim query = From year in years Where Is20thCentury(year) Select year For Each yr in query lstBox.Items.Add(yr) Next Function Is20thCentury(num As Integer) As Boolean If (num >= 1900) and (num < 2000) Then Return True Else Return False End IF End Function ``` (A) 1929 and 1945 (B) 1929 (C) 1492, 1776, 1840, 1929, 1945, 2005 (D) No years
A wide area network (WAN) is a telecommunications network that connects users and their computers in a geographical area that spans a campus or business park, but not beyond the city limits.
Answer the following statement true (T) or false (F)
The _________, _________ and _________ of an operator cannot be changed by overloading the operator.
Fill in the blank(s) with the appropriate word(s).
A ________ table is a table that is related to a primary table using a foreign key
Fill in the blank(s) with correct word