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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!";
}
There are 5 cout statements, but that doesn’t mean there are 5 lines of output!
Remember that endl is what makes a new line!
Even though there are 5 cout, there are only 3 lines of output in the terminal.
There are 2 endl statements. But what happens when you have more output after the endl?
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.
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activities on this page.
