Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Lab 8.1
**Chapter 8: More on the Repetition Structure**

---

**LAB 8-1 Stop and Analyze**

Study the program shown in Figure 8-14, and then answer the questions.

---

```cpp
//Lab8-1.cpp
//created/revised by <your name> on <current date>

#include <iostream>
using namespace std;

int main()
{
    int maxRows = 0;

    cout << "Maximum number of rows: ";
    cin >> maxRows;

    for (int row = 0; row < maxRows; row += 1)
    {
        for (int space = 0; space < maxRows - row; space += 1)
            cout << " ";
        //end for

        for (int asterisk = 0; asterisk < row; asterisk += 1)
            cout << "*";
        //end for

        cout << endl;
    }
    //end for
    return 0;
} //end of main function
```

**Figure 8-14** Code for Lab 8-1

---

**QUESTIONS**

1. How many loops does the program contain? How many are nested? 

2. Desk-check the program using the number 3 as the maximum number of rows. What will the program display?

3. Follow the instructions for starting C++ and viewing the Lab8-1.cpp file, which is contained in either the Cpp8\Chap08\Lab8-1 Project folder or the Cpp8\Chap08\s folder (Depending on your C++ development tool, you may need to open Lab8-1’s project solution file first.) Run the program. Test the program using the number 3 as the maximum number of rows. What does the program display?

4. Run the program again. This time, use the number 10 as the maximum number of rows. What does the program display?

5. Replace the outer `for` statement with a `while` statement. Save and then run the program. Test the program using the number 10 as the maximum number of rows. The output should agree with the results from Question 4.

---
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Transcribed Image Text:**Chapter 8: More on the Repetition Structure** --- **LAB 8-1 Stop and Analyze** Study the program shown in Figure 8-14, and then answer the questions. --- ```cpp //Lab8-1.cpp //created/revised by <your name> on <current date> #include <iostream> using namespace std; int main() { int maxRows = 0; cout << "Maximum number of rows: "; cin >> maxRows; for (int row = 0; row < maxRows; row += 1) { for (int space = 0; space < maxRows - row; space += 1) cout << " "; //end for for (int asterisk = 0; asterisk < row; asterisk += 1) cout << "*"; //end for cout << endl; } //end for return 0; } //end of main function ``` **Figure 8-14** Code for Lab 8-1 --- **QUESTIONS** 1. How many loops does the program contain? How many are nested? 2. Desk-check the program using the number 3 as the maximum number of rows. What will the program display? 3. Follow the instructions for starting C++ and viewing the Lab8-1.cpp file, which is contained in either the Cpp8\Chap08\Lab8-1 Project folder or the Cpp8\Chap08\s folder (Depending on your C++ development tool, you may need to open Lab8-1’s project solution file first.) Run the program. Test the program using the number 3 as the maximum number of rows. What does the program display? 4. Run the program again. This time, use the number 10 as the maximum number of rows. What does the program display? 5. Replace the outer `for` statement with a `while` statement. Save and then run the program. Test the program using the number 10 as the maximum number of rows. The output should agree with the results from Question 4. ---
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