Question

31. The following code segment is syntactically correct:

             int number{20};

         cout << number << setbase(16) << " " << number            

                  << setbase(10) << " " << number              

                  << showpos << " " << number << endl;       

         T__   F__      

32. The following statement wants to determine if ‘count’ is outside the

    range of 0 through 100:    

        if (count < 0 && count > 100)     

                                  

    T__   F__

33. There is a logical error inside this code segment:

        if ( gender == 1 )

            cout << "Woman" << endl;

        else;                          

            cout << "Man" << endl;           

    T__   F__

34. The following two implementations perform the same operation:

             q = x < y ? a+b : x*2;  

        if( x < y )

            q = a + b;

        else

            q = x*2;      

    T__   F__

35. What is the value of ‘w’ after this code fragment is executed ?

        int x{2}, y{5}, w;

        w = x * (x > y ? 1 : 2);

                                                

    A. 2      B. 4    C. 10     D. none of the above

36. The following code segment prints the values 1 to 10.

        int n{1};

        while ( n < 10 )   cout << n++ << endl;   

    T__   F__

37. There is a logical error inside this code segment:

        while ( z >= 0 ) sum += z;   

                                       

    T__   F__

     38. The following code-segment of ‘main()’ is syntactically correct:

             int x{100000};     

             while( x-- );        

                         

    T__   F__

   

39. The following program is logically incorrect:

      #include <iostream>

      using namespace std;

      int main()

      {

          int count=1, total=0;    // loop variable initialized

         

          while (count <= 100)      

              total += count;

          cout << "The sum of the numbers 1-100 is ";

        cout << total << endl;

          return 0;

      }

    T__   F__

40. There is an error inside this code segment:

        int x{1}, total;      

        while ( x <= 10 )

        {

            total += x;

            ++x;

        }

    T__   F__      

    

Answer 1

31.

int number{20};

         cout << number << setbase(16) << " " << number            

                  << setbase(10) << " " << number              

                  << showpos << " " << number << endl;    

T

32.

range of 0 through 100:    

        if (count < 0 && count > 100)

F

Correct declaration

        if (count < 0 || count > 100) // Need to use OR(||) because the statement is true any of the statement is true.

33.

        if ( gender == 1 )

            cout << "Woman" << endl;

        else;                          

            cout << "Man" << endl;     

F

      else; // Else does not end with semicolon

34.

             q = x < y ? a+b : x*2;  

        if( x < y )

            q = a + b;

        else

            q = x*2;    

T

35.

int x{2}, y{5}, w;

        w = x * (x > y ? 1 : 2);

w = 2 * (2 > 5 ? 1 : 2);

Here 2>5 false so the value is 2

w = 2 * (2);

w = 4

Option B

According to HomeworkLib guidelines i have to solve first four bits only but i solve first. Please do next post for remaining answers.