What is a wrapper and why would you use it?
What will be an ideal response?
?A wrapper is a class or object that is "wrapped around" a simpler element; the Integer wrapper class contains a simple integer and useful methods to manipulate it.
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The __________ package is automatically imported into all Java programs.
a. java.java b. java.default c. java.util d. java.lang
Answer the following statements true (T) or false (F)
1) A bind variable is declared with VARIABLE command command at the SQL> prompt. 2) A bind variable is declared with VARIABLE command command at the SQL> prompt. 3) A substitution variable is declared under DECLARE section of a PL/SQL block. 4) A bind variable is used in a PL/SQL block with a colon (:) prefix. 5) A local variable used in a PL/SQL block can be printed with PRINT command.
Suppose Circle and Rectangle classes are derived from GeometricObject and you declared
``` void displayGeometricObject(GeometricObject shape) { cout << shape.toString() << endl; } ``` Which of the following function call is correct? A. displayGeometricObject(Rectangle(2, 3)); B. displayGeometricObject(GeometricObject("black", true)); C. displayGeometricObject(string()); D. displayGeometricObject(Circle(5));
When working with Access in ____ Mode, the user may tap the buttons on the Ribbon and also tap to use other features of Access 2016.
A. Write B. Touch C. Tap D. Tablet