Recap Chapter 6, 7, 8

Best type of repetition control structures to be used to make a menu item?

• While loop

• If ...else

• Do...while loop

• For loop

Answer explanation

Do...while loop is more convenient to the user, where the menu in a program will repeats itself, until the user chooses to quit the program. Therefore, do…while loop is a good choice for repeating a menu.

Display array according to the boxes for the statement below.
char string2[] = "Wonderful";

Answer explanation

A C-string is a string whose characters are stored in consecutive memory locations, terminated by a null character.

Which one of the syntax can read C-string with whitespaces?

• cin.getline(arrayName, size);

• getline(cin, variableName);

• cin >> VariableName;

• All of the above

Please write the output for the code based on the picture.

Header file that used for character testing function.

Example: isupper, islower, isalpha

What type of dataType that can be used in array?

• int & string

• char & string

• int & double

• All kind of dataType

Please write the output for the program as shown in the picture.

Answer explanation

The answer supposed to be:

This will display greetings between two friends

Hello! Nice to meet you!

Hi! My name is Laura!

Nice to meet you too!

Hope you are getting it right!

In any case, the program should give an output starting from the main function although the other functions are declared before the main function.

Does the output for the program code for best1 and best2 will be the same?

• Same

• Different

• Error

• None of the answer

Answer explanation

The output of the program will be the same since string can hold a sentence with white spaces without needing an array. While char need an array to store in consecutive memory locations (c-string).

Does array definition below is valid or invalid?

const int VALUES = 7;

int days[VALUES];

• Valid

• Invalid

Answer explanation

To make an array definition for size declarator must have const int.

Please read and analyze the program code carefully. You can either use Microsoft Visual Studio to run your code or just analyze the program code based on the picture. Please state the output of the program.

Answer explanation

Based on the output of the program,

The program run starting from the main function. After executing two statement in main function, it call for function displayCalculate().

After running through the statements and repetition selection, it goes back to the main function and terminates the program.

Although the displayNumber() function have been declared using Function prototype, it seems that statements for the function displayNumber() does not executed due to no call function has been done for displayNumber().