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- Download: http://solutionzip.com/downloads/10-cpp-programs/
- Exercise P1.1. Write a program that prints the message, “Hello, my name is Hal!”
- Then, on a new line, the program should print the message “What would you like
- me to do?” Then it’s the user’s turn to type in an input. You haven’t yet learned how
- to do it—just use the following lines of code:
- string user_input;
- getline(cin, user_input);
- Finally, the program should ignore the user input and print the message “I am sorry,
- I cannot do that.”
- This program uses the string data type. To access this feature, you must place the
- line
- #include
- before the main function.
- Here is a typical program run. The user input is printed in boldface.
- Hello, my name is Hal!
- What would you like me to do?
- Clean up my room
- I am sorry, I cannot do that.
- When running the program, remember to hit the Enter key after typing the last
- word of the input line.
- P1.3. Write a program that computes the sum of the first ten positive integers,
- 1 + 2 + … + 10. Hint: Write a program of the form
- int main()
- {
- cout <<
- return 0;
- }
- Exercise P2.3. Write a program that prompts the user for two integers and then
- prints
- • The sum
- • The difference
- • The product
- • The average
- • The distance (absolute value of the difference)
- • The maximum (the larger of the two)
- • The minimum (the smaller of the two)
- Hint: The max and min functions are defined in the algorithm header.
- Exercise P2.30. Your boss, Juliet Jones, is getting married and decides to change her
- name. Complete the following program so that you can type in the new name for
- the boss:
- int main()
- {
- Employee boss("XXXXX, XXXXXt", 45000.00);
- // Your code goes here; leave the code above and below unchanged
- cout << "Name: " << boss.get_name() << "\n";
- cout << "Salary: " << boss.get_salary() << "\n";
- return 0;
- }
- The problem is that there is no set_name member function for the Employee class.
- Hint: Make a new object of type Employee with the new name and the same salary.
- Then assign the new object to boss.
- Exercise P3.3. Write a program that reads in three floating-point numbers and prints
- the largest of the three inputs. For example:
- Please enter three numbers: 4 9 2.5
- The largest number is XXXXX
- Exercise P3.16. Write a program that first asks the user to type in today’s exchange
- rate between U.S. dollars and Japanese yen, then reads U.S. dollar values and converts
- each to Japanese yen. Use 0 as the sentinel value to denote the end of dollar
- inputs. Then the program reads a sequence of yen amounts and converts them to
- dollars. The second sequence is terminated by the end of the input file.
- Exercise P4.2. Write a procedure void sort2(int& a, int& b) that swaps the values
- of a and b if a is greater than b and otherwise leaves a and b unchanged. For example,
- int u = 2;
- int v = 3;
- int w = 4;
- int x = 1;
- sort2(u, v); // u is still 2, v is still 3
- sort2(w, x); // w is now 1, x is now 4
- Exercise P4.8. Write a function
- double get_double(string prompt)
- that displays the prompt string, followed by a space, reads a floating-point number
- in, and returns it. (In other words, write a console version of cwin.get_double.)
- Here is a typical usage:
- salary = get_double("Please enter your salary:");
- perc_raise =
- get_double("What percentage raise would you like?");
- If there is an input error, abort the program by calling exit(1). (You will see in
- Chapter 5 how to improve this behavior.)
- Exercise P4.15. Consider the following buggy function:
- Employee read_employee()
- {
- cout << "Please enter the name: ";
- string name;
- getline(cin, name);
- cout <> salary;
- Employee r(name, salary);
- return r;
- }
- When you call this function once, it works fine. When you call it again in the same
- program, it won’t return the second employee record correctly. Write a test harness
- that verifies the problem. Then step through the function. Inspect the contents of
- the string name and the Employee object r after the second call. What values do you
- get?
- Exercise P5.1. Implement all member functions of the following class:
- class Person
- {
- public:
- Person();
- Person(string pname, int page);
- void get_name() const;
- void get_age() const;
- private:
- string name;
- int age; // 0 if unknown
- };
- Download: http://solutionzip.com/downloads/10-cpp-programs/
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