COSC-1337 Exam 1 Review questions with complete solutions

COSC-1337 Exam 1 Review questions
with complete solutions

Write the assignment statements that perform the following operations with int variable i, double
variables d1 and d2, and char variable c:



a.) Add 2 to d1 and store the result in d2. - correct answer ✔✔d2 = d1 + 2;



Write the assignment statements that perform the following operations with int variable i, double
variables d1 and d2, and char variable c:



b.) Multiply d2 times 4 and store the result in d1. - correct answer ✔✔d1 = d2 * 4;



Write the assignment statements that perform the following operations with int variable i, double
variables d1 and d2, and char variable c:



c.) Store the character 'K' in c. - correct answer ✔✔c = 'K';



Write the assignment statements that perform the following operations with int variable i, double
variables d1 and d2, and char variable c:



d.) Store the ASCII code for the character 'K' in i. - correct answer ✔✔i = 'K';



Write the assignment statements that perform the following operations with int variable i, double
variables d1 and d2, and char variable c:



e.) Subtract 1 from i and store the result back in i. - correct answer ✔✔i = i - 1;

, Write the C++ code for a program that calculates how many days are left until halloween, when given as
an input how many weeks are left until halloween. Use variable named weeks and days. - correct answer
✔✔#include<iostream>

using namespace std;



int main()

{

int weeks, days;



cout<<"Enter number of weeks: ";

cin>>weeks;

days = weeks * 7;

cout<<"Number of days is "<<days<<endl;



return 0;

}



Assume the following variables are defined:



int age;

double pay;

char section;



Write a single cin statement that will read input into each of these variables. - correct answer
✔✔cin>>age>>pay>>section;



Is the following code legal? Why or why not?



const int DAYS_IN_WEEK;