Iostream - Study guides, Class notes & Summaries

Advanced programming CHAPTER 1 24.5 out of 30 Question 1 What will happen when you attempt to compile and run the following code? #include <vector> #include <iostream> int main () { std::vector<int> v1; // LINE I _back(10); // LINE II std::cout<<()<<":"<<()<<std::endl; // LINE III return 0; } code compiles and executes successfully Question 2 Which statement is true about the code...

C857 Test Questions and Answers(variable -ANSWER named location in memory main function -ANSWER called when the program starts cout -ANSWER a filestream variable that represents the default output device #include <iostream> -ANSWER include directive needed to allow use of the various I/O operators such as cout and cin. preprocessor directive -ANSWER C program line beginning with # that provides an instruction to the preprocessor; instruction to the compiler to change the source...

#include <iostream> using namespace std; int main() { return 0; } - Answer- the parts required in every C++ program comments - Answer- nonexecutable statements that are included in a program to provide information about what the program does, how it works, what input is expected, what output is generated, who wrote it, etc. preprocessor directives - Answer- tells the computer where to find the library for operations and data types preprocessor - Answer- a program that finds a...

variable -ANSWER named location in memory main function -ANSWER called when the program starts cout -ANSWER a filestream variable that represents the default output device #include <iostream> -ANSWER include directive needed to allow use of the various I/O operators such as cout and cin. preprocessor directive -ANSWER C program line beginning with # that provides an instruction to the preprocessor; instruction to the compiler to change the source code before compilation. how...

What is an unsigned type? - Answer a keyword to indicate only positive integers including zero If you set an unsigned type to a negative value, what happens? - Answer causes the value to underflow and wrap around to the max value of that data type When would you want to use an unsigned type? - Answer when you know a variable's number will always be positive What default values are assigned to your variables in C++? For example: int x; // what value does this have? - Answer no ...

What number is used by modern digital computers? - Answer- Binary Using "cin" and "cout" requires which library? - Answer- iostream What data type would be best for the value 42? - Answer- int What is the result of: pow( 3, 2 ) - Answer- 9 What value would the variable y be equal to? int y = 3 + 5 / 2; - Answer- 5 Which of the following are logical operators? a) &&, ||, != b) ||, !, == c) !, ||, && - Answer- c If x = 5, y = 6, z = 4, what is the value of x != z && ...

2-1 ********************************** * Programming Assignment 1 * * Computer Programming I * * Author: ??? * * Due Date: Thursday, Jan. 24 * ********************************** In your program, substitute ??? with your own name. If necessary, adjust the positions and the number of the stars to produce a rectangle. - Answer- #include <iostream> using namespace std; int main() { cout<<"**********************************" << endl; cout <<"* Programming Assi...

What is printed by the following code? int main () { int array[5] = {10,30,50,70,90}; int *p = array; cout << *(p+1) + *(&*p) + 1; return 0; } correct answer: 41 What is the value in the variable Exam::total that is printed when this program is executed? #include<iostream> using namespace std; class Exam { public: static int total; Exam() { total++; } }; int Exam::total = 0; int main(){ Exam a, b, c; Exam *d, *e, *f = new Exam; cout << Exa...

cin >> i; - ️️The code above states that there will be a value inputed (allows the user to input a value)/ associated with i later on. For example it could be used in a way such as i++, if the input value of i is 1 the ++ will incrementally increase i by 1 thus making i 2. assuming that C and F are both declared as doubles, and F has a valid value. - ️️What's wrong with it is you're always going to get 0 because it is integer division and 5 does not go into 9 evenly. Yo...

Advanced programming CHAPTER 1 24.5 out of 30 Question 1 What will happen when you attempt to compile and run the following code? #include <vector> #include <iostream> int main () { std::vector<int> v1; // LINE I _back(10); // LINE II std::cout<<()<<":"<<()<<std::endl; // LINE III return 0; } code compiles and executes successfully Question 2 Which statement is true about the code...