To update a database record, you must first ________ it
A) copy
B) filter
C) find
D) save
C
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Which of the following statements about Polylines and Polygons is false?
a) Each Polyline and Polygon object has a Points property defined in the XAML. This property consists of a series of points that are defined as x-y coordinates on the Canvas. b) Each point’s x and y values are separated by a comma, and each point is separated from the next with a space. c) The Points property is an object of class PointCollection (namespace Windows.UI.Xaml.Media) that stores individual Point objects. d) Polygon draws a series of connected lines defined by a set of points, while Polyline does the same but connects the start and end points to make a closed figure. Part d) is false. It should read: Polyline draws a series of connected lines defined by a set of points, while Polygon does the same but connects the start and end points to make a closed figure.
Consider the classes below, declared in the same file:
``` class A { int a; public A() { a = 7; } } class B extends A { int b; public B() { b = 8; } } ``` Which of the statements below is false? a. Both variables a and b are instance variables. b. After the constructor for class B executes, the variable a will have the value 7. c. After the constructor for class B executes, the variable b will have the value 8. d. A reference of type A can be treated as a reference of type B.
Would this compile? If not, what change do you need to make so that it will compile?
``` public void test3 ( int x ) { return " In Test3 " ; } ```
An array that you can picture as a column of values, and whose elements you can access using a single subscript, is what type of array?
A. two-dimensional B. jagged C. rectangular D. single-dimensional