Test help! Question 7. 7. (TCO 1) What is the output for the following code frag

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Test help!

Question 7.7. (TCO 1) What is the output for the following code fragment?

int var1 = 20;
cout << var1--;
cout << var1++;

(Points : 5)

       1920
       1921
       2020
       2019

Question 8.8. (TCO 1) Which operation in the following expression will be performed first?

c = a++ / b + 5;

(Points : 5)

       a++
       a / b
       b + 5
       assignment to c

Question 9.9. (TCO 2) The endl manipulator _______. (Points : 5)

       requires #include <iomanip>
       is used with cout to display a new line
       only works with cin statements
       All of the above

Question 10.10. (TCO 2) The users of your C++ program complain that the program's window exits before they have a chance to view the results. How can you remedy this problem? (Points : 5)

       Add "cin.ignore(2)" to the end of the program's code
       Add "cout.putback(2)" to the last line of code
       Add "endl" to the end of the last line of code
       Add "cin.get(2)" to the end of the program's code

Question 11.11. (TCO 2) Which statement outputs a double value in a field of five characters with two digits after the decimal point? (Points : 5)

       cout << 5chars << 2digits << 1.23;
       cout << setprecision(2) << setw(5) << 1.2345678;
       cout << fixed << setprecision(2) << 1.23;
       cout >> setw(2) >> setprecision(5) >> 1.23;

(TCO 2) What are the values of the variables after the code fragment below executes if the input data is 37 86.56 32?

double x, y;
int z;
cin >> x;
cin >> z;
cin >> y;

(Points : 5)

       x = 37.0, y = 32, z = 86
       x = 37.0, y = 56, z = 86
       x = 37.0, y = 32, z = 86.56
       x = 37.0, y = 0.56, z = 86

Question 7.7. (TCO 1) What is the output for the following code fragment?

int var1 = 20;
cout << var1--;
cout << var1++;

(Points : 5)

       1920
       1921
       2020
       2019

Explanation / Answer

2019

a / b

is used with cout to display a new line

Add "cin.get(2)" to the end of the program's code

cout >> setw(2) >> setprecision(5) >> 1.23;

x = 37.0, y = 32, z = 86

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