Exercises 2.12 Exercises

At the end of each chapter, we include exercises you can do with the things you’ve learned. You can’t learn to program only by reading about it; you have to practice.

1.

Take a look at the following program. How many lines of output will be produced?

int main() {
  cout << "The current time is: " << endl;
  cout << 7;
  cout << ":" << 50;
  cout << endl;
  cout << "I'm going to be late for my 8am!";
}

5
There are 5 cout statements, but that doesn’t mean there are 5 lines of output!
4
Remember that endl is what makes a new line!
3
Even though there are 5 cout, there are only 3 lines of output in the terminal.
2
There are 2 endl statements. But what happens when you have more output after the endl?
0 (There is an error!)
No errors here.

2.

Construct a block of code that prints: “Lions &” one the first line, “Tigers & Bears!” on the second line, and “Oh my!” on the FOURTH line.

int main() {
---
 cout << "Lions &" << endl;
---
 cout << "Lions &";  #paired
---
 cout << "Tigers &";
---
 cout << "Tigers &" << endl;  #paired
---
 cout << " Bears!" << endl;
---
 cout << "Bears!" << endl;  #paired
---
 cout << endl;
---
 cout << "Oh my!";
---
}

3.

4.

Complete the code so that it prints Hello! on one line and then I love programming! on the next.

You have attempted of activities on this page.

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