When you increase the column width in a table the second column also widens.

Answer the following statement true (T) or false (F)


False

Computer Science & Information Technology

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The ____ tab displays the most commonly used items.

A. Common B. Tools C. All D. Use

Computer Science & Information Technology

Consider class Complex shown in Figs. 11.1–11.3. The class enables opera- tions on so-called complex numbers. These are numbers of the form realPart + imaginaryPart * i, where i has the value ?-1

a) Modify the class to enable input and output of complex numbers through the overloaded >> and << operators, respectively (you should remove the print function from the class). b) Overload the multiplication operator to enable multiplication of two complex numbers as in algebra. c) Overload the == and != operators to allow comparisons of complex numbers. Fig. 11.1 Complex class definition.

 // Complex class definition.
 #ifndef COMPLEX_H
 #define COMPLEX_H

 class Complex
 {
 public:
 Complex( double = 0.0, double = 0.0 ); // constructor
 Complex operator+( const Complex & ) const; // addition
 Complex operator-( const Complex & ) const; // subtraction
 void print() const; // output
 private:
 double real; // real part
 double imaginary; // imaginary part
 }; // end class Complex

 #endif
Fig. 11.2 | Complex class member-function definitions.
 // Complex class member-function definitions.
 #include 
 #include "Complex.h" // Complex class definition
 using namespace std;

 // Constructor
 Complex::Complex( double realPart, double imaginaryPart )
 : real( realPart ),
 imaginary( imaginaryPart )
 {
 // empty body
 } // end Complex constructor

 // addition operator
 Complex Complex::operator+( const Complex &operand2 ) const
 {
 return Complex( real + operand2.real,
 imaginary + operand2.imaginary );
 } // end function operator+

 // subtraction operator
 Complex Complex::operator-( const Complex &operand2 ) const
 {
 return Complex( real - operand2.real,
 imaginary - operand2.imaginary );

 } // end function operator-

 // display a Complex object in the form: (a, b)
 void Complex::print() const
 {
 cout << '(' << real << ", " << imaginary << ')';
 } // end function print
Fig. 11.3 | Complex numbers.
 // Complex class test program.
 #include 
 #include "Complex.h"
 using namespace std;

 int main()
 {
 Complex x;
 Complex y( 4.3, 8.2 );
 Complex z( 3.3, 1.1 );

 cout << "x: ";
 x.print();
 cout << "\ny: ";
 y.print();
 cout << "\nz: ";
 z.print();

 x = y + z;
 cout << "\n\nx = y + z:" << endl;
 x.print();
 cout << " = ";
 y.print();
 cout << " + ";
 z.print();

 x = y - z;
 cout << "\n\nx = y - z:" << endl;
 x.print();
 cout << " = ";
 y.print();
 cout << " - ";
 z.print();
 cout << endl;
 } // end main
x: (0, 0) y: (4.3, 8.2) z: (3.3, 1.1) x = y + z: (7.6, 9.3) = (4.3, 8.2) + (3.3, 1.1) x = y - z: (1, 7.1) = (4.3, 8.2) - (3.3, 1.1)

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The insert and delete algorithms for AVL trees are the same as for regular binary search trees.

Answer the following statement true (T) or false (F)

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A(n) ____ is designed to stop an attack from occurring by uncovering and preventing an attack before it harms the WLAN.

A. WIDS B. IDS C. WLAN management system D. WIPS

Computer Science & Information Technology