By using C++ write a program that prompts the user to enter the 12 digits of a barcode separated by space. The program should store the digits in an integer array, calculate the check digit, and compare it to the final barcode digit. If the digits match, output the barcode with the message "validated". If not, output the barcode with the message "error in barcode".

By using C++ write a program that prompts the user to enter the 12 digits of a barcode separated by space. The program should store the digits in an integer array, calculate the check digit, and compare it to the final barcode digit. If the digits match, output the barcode with the message "validated". If not, output the barcode with the message "error in barcode".

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

inside the cpu, mathematical oprations like addition subtraction ,multipulcation and division are done in bit-livel. To perform bit-livel opration in c programming ,bitwise operators are used. apply the knowledge you gained while learing bit wise operators. write a program to input two integers from user by using single scanf.computer and display the value for a and b, a|b,a theta b.
Please help me solve this problem with kind explanations :) We are running programs on a machine where values of type int have a 32-bit two's complement representation. Values of type float use the 32-bit IEEE format, and values of type double use the 64-bit IEEE format. We generate arbitrary integer values x, y, and z, and convert them to values of type double as follow: /* Create some arbitrary values */ int x = random(); int y = random(); int z = random(); /* Convert to double */ double dx = (double) x; double dy = (double) y; double dz = (double) z; For each of the following C expressions, you are to indicate whether or not the expression always yields 1. If it always yields 1, describe the underlying mathematical principles. Otherwise, give an example of arguments that make it yield 0. Note that you cannot use an IA32 machine running GCC to test your answers, since it would use the 80-bit extended-precision representation for both float and double. A. (double)(float) x == dx B. dx…
Consider the following code which includes a parity check for the third digit: C=(000,011,101,110). You get the third digit by adding the first two and then using the remainder on division by 2. Can this code detect and count single errors? how can this be implemented?
We usually write numbers in decimal form (or base 10), meaning numbers are composed using 10 different “digits” {0,1,…,9}.{0,1,…,9}. Sometimes though it is useful to write numbers hexadecimal or base 16. Now there are 16 distinct digits that can be used to form numbers: {0,1,…,9,A,B,C,D,E,F}.{0,1,…,9,A,B,C,D,E,F}.So for example, a 3 digit hexadecimal number might be 2B8. How many 2-digit hexadecimals start with a letter (A-F) or end with a numeral (0-9) (or both)?
For arbitrary a and b,c % m = (a b) % mc % m = [(a % m) (b % m)] % mUsing this mathematical property, you can iterate 1 to the exponent, recalculating each time by multiplying the current modulus value with the last.Here is the pseudocode:1 Set value = 1, current exponent = 0.2 Increment current exponent by 1.3 Set value = (base value) mod modulus until current exponent is reached exponentExample: Base: 4, Exponent: 3, Modulus: 54ˆ3 % 5 = 64 % 5 = 4value = (lastValue x base ) % modulus:value = (1 x 4) % 5 = 4 % 5 = 4value = (4 x 4) % 5 = 16 % 5 = 1value = (1 x 4) % 5 = 4 % 5 = 4write javascript code ?
A number in base 2 (binary) is a number such that each of its digits is 0 or 1. To convert frombinary to decimal (base 10), the digits starting from the right are multiplied by powers of 2(starting at 0) and added. For example, the value in decimal of 10011 is calculated as follows:
A number of the form a + ib, in which i2 = -1 and a and b are real numbers, is called a complex number. We call the real part and b the imaginary part of a + ib. Complex numbers can also be represented as ordered pairs (a, b). The addition and multiplication of complex numbers are defined by the following rules: (a + ib) + (c + id) = (a + c) + i(b + d ) (a + ib) * (c + id) = (ac - bd) + i(ad + bc) Using the ordered pair notation, these rules are written as: (a, b) + (c, d) = ((a + c), (b + d )) (a, b) * (c, d) = ((ac - bd ), (ad + bc)) C++ has no built-in data type that allows us to manipulate complex numbers. Construct a data type, complex Type, that can be used to process complex numbers. Overload the stream insertion and stream extraction operators for easy input and output. We will also overload the operators + and * to perform addition and multiplication of complex numbers. If x and y are complex numbers, we can evaluate expressions such as x + y and x * y.
Two friends are exchanging messages through regular post mail. They don’t want anyone to understand their messages in case anyone read them. The messages are in the form of an array of characters, where each character has a numeric value as illustrated in the below lookup table.
Given a number n, identify and print which in the given set of numbers are factors of n. Should there be no factors listed in the set of numbers, print "I'm alone". For example, given the number 36 and the set of numbers 2, 3, 5, 7, 12. Only print the numbers which are factors of 36, which are 2, 3, 12. Input The first line contains the number n; The second line contains how many numbers there are in the set of numbers; The third line contains the set of numbers. INPUT: 36 5 2·3·5·7·12 Output The set of numbers that are factors of n separated by a new line in order of appearance. If there are none, print "I'm alone" OUTPUT: 2 3 12
The following is an addition problem displayed in standard base 10 notation. Each letter represents a different digit (each digit must be an integer in the range of 1 to 9). What digit does each letter represent? What information did you use to get started with narrowing down possible values for the letters? PXQ + XYX ----- QXQY
a) What is "Approximation Error" in floating-point representation? Approximation Error - Since in floating point representation we can not represent all real numbers so there occurs an error.It is difficult to represent some decimal numbers in binary form. b) Why is it happening? Floating point Approximation error occur because it uses fixed no. of bits to represent decimal numbers. It is difficult to represent real numbers with the help of fixed bits of binary numbers. Also some decimal numbers are difficult to represent in binary form. c) How can we minimize it? We can minimise it by- 1.Changing radix 2.Adding numbers of different magnitude value. 3.overflow 4. underflow 5.Subtracting numbers of same magnitude value. Dont use answers from other websites please! Please type your answer not picture d) How can the character codes be a solution for this?
Write a calculator conversion program in Python that converts: A binary number into a hexadecimal number. A hexadecimal number into a binary number. The calculator should be able to handle 16 bits.