<< Chapter < Page Chapter >> Page >

2.10) Write a C++ program that inputs an integer n and two square matrices with order of n. Then the program calculates the multiplication of the two matrices and displays the resultant matrix.

Lab session 5: strings and structures

1. objective

The objectives of Lab session 5 are (1) to get familiar with strings; (2) to get familiar with structures; (3) to practice on processing arrays of structures.

2. experiment

2.1) Write a C++ program that accepts a string of characters from a terminal and displays the hexadecimal equivalent of each character.

(Hint: Use the cin.getline() function to input a string)

2.2) Write a C++ program that accepts a two strings of characters from a keyboard and displays the concatenation of the two strings.

(Hint: Use the cin.getline() function to input a string)

2.3) Write and run a program that reads three strings and prints them out in an alphabetical order.

(Hint: Use the strcmp() function).

2.4) Write a C++ program that accepts a string of characters from a terminal and converts all lower-case letters in the string to upper-case letters.

2.5) a. Using the data type

struct MonthDays

{

char name[10];

int days;

};

define an array of 12 structures of type MonthDays. Name the array months and initialize the array with the names of the 12 months in a year and the number of days in each month.

b. Include the array created in a) in a program that displays the names and number of days in each month.

2.6) a. Declare a data type named Car, which is a structure consisting of the following information for each car:

b. Using the data type defined in a) write a C++ program that inputs the data given in the above table into an array of 5 structures., and then computes and displays a report consisting of 3 columns: car-number, kms-driven and gas-litres-used.

Lab session 6: functions

1. objective

The objectives of Lab session 6 is to practice on C++ functions.

2. experiment

2.1) Given the following function:

int square(int a)

{

a = a*a;

return a;

}

a. Write a C++ program that reads an integer n and invokes the function to compute its square and displays this result.

b. Rewrite the function so that the parameter is passed by reference. It is named by square2. Write a C++ program that reads an integer x and invokes the function square2 to compute its square and displays this result and then displays the value of x. What is the value of x after the function call? Explain this value.

2.2) Read the following function that can compute the largest integer which square is less than or equal to a given integer.

int Intqrt(int num)

{

int i;

i = 1;

do

++ i

while i*i<= num;

return(i –1);

}

Write a C++ program that inputs an interger n and invokes the function Intqrt to compute the largest integer which square is less than or equal to n.

2.3) a. Write a function that can find the average of all the elements in a double precision floating point array that is passed to the function as a parameter.

b. Write a C++ program that inputs a double precision floating point array and invokes the above function to find the average of all elements in the array and displays it out.

Get Jobilize Job Search Mobile App in your pocket Now!

Get it on Google Play Download on the App Store Now




Source:  OpenStax, Programming fundamentals in c++. OpenStax CNX. Jul 29, 2009 Download for free at http://cnx.org/content/col10788/1.1
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Programming fundamentals in c++' conversation and receive update notifications?

Ask