CST116
Module 2: Lab 2

3a 4.1 #1 - 7

1.	Legal – Numeric Literal
2.	Illegal
3.	Legal – String literal
4.	Illegal
5.	Illegal
6.	Illegal
7.	Illegal

4.3 #3

a.There should only be one “int” and it should be at the beginning(i.e. int a, b;)
b.a can’t be signified as another variable(b) because b is not signified first
(i.e.b = 0;      a = b;)
c.b should be declared on a different line(i.e. int a = 0;       int b = 3.5;)
d.Instead of quotations, it should be an apostrophe(ex. char grade = ‘A’;)
e.Instead of char it should be int because char uses a string of letters(ex. int c = 1;)
f.
g.Should not be a string, should be a character, also use apostrophe
(ex. char x = ‘T’;)

6.1 #1 - 4

1.	Invalid.Should be ‘y = 5 * x + 1; ’
2.	Invalid.Should be ‘x * x + 2 * x + 1 = 0; ’
3.	Valid
4.	Invalid.There cannot be a 0 starting the expression

3b 4.12 #1 - 2

1.	He did the math wrong.Change .06 with 1.06
2.	The class score doesn’t add up to 100 % (.2 + .4 + .25 = .85)

3c 4.13 #2 - 3

2. #include <iostream>
Using std::cout

Int main()
{
	Char ascii = 67;

	Cout << ascii << ‘\n’;

	Ascii = 43;
	Cout << ascii << ‘\n’;
	Cout << ascii << ‘\n’;

	Return 0;
}
	3. #include <stdio.h>

		int main()
	{
		int age_of_person;
		float year = 365, days;
		//ask for age
		printf("\nHow old are you: ");
		//process age
		scanf_s(" %d", &age_of_person);

		//convert years into days
		days = age_of_person * year;
		//print answer
		printf("\nYour age in days is: %f", days);

		return 0;

		4a 5.4 #1

			1.
#include <iostream>
#include <stdlib.h>
#include <iomanip>

			float temperature;

		using namespace std;
		int main()
		{

			//taking temperature and storing
			printf("\nWhat is your temperature?    ");
			cin >> temperature;


			//listing temperature

			cout << "\nYour Temperature is: ";

			cout.setf(ios::fixed);
			cout << setprecision(6);
			cout << temperature << endl;

			return 0;
		}

		6.3 #1 - 7

			1. 25
			2. 30
			3. error ? a is already defined
			corrected is a = 5
			b = a + ( 5 + 10 ) * 2;
			4. 0
			5. 1
			6. error ? both operands have to be an integer
			corrected is a = 5 % 2;
			7. 4

		4b 5.9

			1. 
#include <iostream>
#include<iomanip>

			using std::cout;
			using std::cin;
			using std::endl;


			int main()
			{

				float money = 123.45F;
				float raise;

				cout << "you have $";
				cout << money << endl;

				//breakpoint 1
				//put a breakpoint on the following line
				cout << "enter percent raise: ";
				cin >> raise;

				money = money * raise;

				cout << "After your raise you have $";
				cout << money << endl;

				return 0;
			}

		5.10 #1

			1. 
#include <iostream>
			using std::cout;
		using std::cin;
		using std::endl;

		int main()
		{
			double ProductionHours;
			double PreProductionHours;
			double ProducersHours;
			double ProductionCost;
			double PreProductionCost;
			double ProducersCost;
			double TotalCost;
			double PRODUCTIONRATE{};
			double PRE_PRODUCTION_RATE{};
			double PRODUCERS_RATE{};
			double ProducerHours{};

			cout << "Enter Production Hours: ";
			cin >> ProductionHours;
			cout << "\nEnter Pre-Production Hours: ";
			cin >> PreProductionHours;
			cout << "\nEnter Producers Hours: ";
			cin >> ProducersHours;

			ProductionCost = ProductionHours * PRODUCTIONRATE;
			PreProductionCost = PreProductionHours * PRE_PRODUCTION_RATE;
			ProducersCost = ProducerHours * PRODUCERS_RATE;

			TotalCost = ProductionCost + PreProductionCost + ProducersCost;

			cout << "\n\tCar Dealership Bill\n\"";
			cout << "\n\nProduction Cost : ";
			cout << ProductionCost;

			cout << "\n\nPre - Production Cost : ";
			cout << PreProductionCost;

			cout << "\n\nProducers Cost : ";
			cout << ProducersCost;

			cout << "\n\nWeekly Total Cost : ";
			cout << TotalCost << endl;

			return 0;
		}