Question

C++ Programming Given int ages={7,12,9,6 }; What will be the output statement: cout<<ages; This will display...

C++ Programming

Given int ages={7,12,9,6 };

  1. What will be the output statement: cout<<ages;
  1. This will display a compiler error
  2. 7,12,9,6
  3. 0
  4. A hex value
  1. Char course [20]=”Intro to c++” ; what character at course[12] will be:
  1. \0
  2. A hex value
  3. +
  4. A space
  1. Given char course [20]={ “Intro to c++”}; the character at course[6] will be:
  1. \0
  2. The letter o
  3. The letter t
  4. A space
  1. In the following two dimensional Array table [4][3]= {3,7,0,2,4,9,8,1,3,6,5,4};

What is the value of table [2][1]?

  1. 4                  b. 7                    c. 6                  d. 1

  1. In the following two-dimensional Array table [3][4] = {3,7,0,2,4,9,8,1,3,6,5,4};

What is the value of table [2][1]?

  1. 4                                     7                                      c. 6                                          d. 1
  1. What is the value of the length?

    int length;

   string s1="programming is fun!";

   length=s1.size();

   cout<<length<<endl;

  1. 20                           b.19                                             c.25                                      d.18
  1. What is the correct declaration statement for an array of 100 integer data type?
  1. Dimension int [100];
  2. Int numbers [99];
  3. Dim numbers [100];
  4. int numbers [100];
  1. A two-dimensional array can be viewed as ------------------   and -----------------------
  1. Increments, decrements
  2. Arguments, parameters
  3. Rows, columns
  4. All of these
  1. Which one of the following is a valid C++ array definition?
  1. float $payment [10];
  2. int score[10];
  3. int reading[4.5];
  4. int scores[0];
  1. Given the following declaration, where 77 stored in the scores array?

Int scores[]={83,62,77,97};

  1. scores[1]                       b. scores[4]                         c. scores[2]                   d. scores[0]
  1. An Array can easily be stepped through by using a:
  1. Named constant               b. for loop                 c. reference value            d. none
  1. What will the following c++ code display?

int numbers[]={99,87,66,55,101};

for(int i=1; i<4; i++)

      {

         cout<<setw(5)<<numbers[i];

}

87   66   55              b. 99    87   66   55        c. 87   66   55    101      d. 66      55   101    

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Homework Answers

Answer #1

Ans1) Correct Option - (d) A hex value

Explaination :- Array name always stores the address of the first block.

Ans2) Correct Option - (d) A space

Explanation :- There is no character at that postion

Ans3) Correct Option - (c) the letter

Explanation :- Letter t is present at index 6

Ans4 Correct Option - (d) 1

Explanation :- Number 1 is present at table[2][1]

Ans5 Correct Option - (b) 19

Explanation :- The size of the string is 19

Ans6 Correct Option -(d) int numbers[100]

Explanation :- The syntax of varibale declaration is data_type variable_name;

Ans7 Correct Option - (c) Rows, columns

Explanation :- Two dimensional array consists of rows and columns.

Ans8 Correct Option - (b) int score[10];

Explanation :- Syntax of array declaration in C++ is data_type array_name[size]

Ans9 Correct Option - (c) scores[2]

Explanation :- Number 77 is stored at index 2

Ans10 Correct Option - (b) for loop

Explanation :- Usually for loops are being used for arrays

Ans11 Correct Option - (a) 87 66 55

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