OOP2 Lab4 updated

Author: Rustam-Z

OOP2_Lab4/Lab4_operator_overloading_Unary.docx

@@ -0,0 +1,36 @@
+# Practical Lab Assignment - Operator Overloading
+
+### Program 1
+Define a class DayTime:
+```
+private:
+int hour, minute, second;
+public:
+    • parameterized constructor to initialize value
+    • int getHour() const{ return hour; }
+    • int getMinute() const { return minute; }
+    • int getSecond() const { return second; }
+    • int asSeconds() const // Daytime in seconds
+    • overload increment operator to increment the value of seconds.
+    • Overload decrement operator to decrement the value of minutes.
+```
+Write  a menu driven program and create following menu options:
+1. To Display Time.
+2. To Display Time in Seconds.
+3. To Increment seconds.
+4. To decrements minutes.
+0. To exit.
+
+### PRogram 2
+Define a class Dollar:
+```
+private:
+    float currency, mktrate, offrate
+public:
+    • float getDollar() { return currency in dollar }
+    • float  getMarketSoums() { return currency in soums }
+    • float  getofficialSoums() { return currency in soums }
+    • void setRates() { // input current date market and official rates }
+    • overload operator "<<" to print the details of a Dollar.
+```
+Inside main declare one object and show the results similar to Program 1.

OOP2_Lab4/README.md

@@ -1,11 +1,16 @@
 #include <iostream>
 #include <string>
+
 using namespace std;
-class DayTime {
+
+class DayTime
+{
 private:
 	int hour, minute, second;
+
 public:
-	DayTime() {
+	DayTime()
+	{
 		hour = 0;
 		minute = 0;
 		second = 0;
@@ -17,64 +22,81 @@ class DayTime {
 		minute = m;
 		second = s;
 	}
-		int getHour() const {
+	int getHour() const
+	{
 		return hour;
 	}
-			int getMinute() const {
+	int getMinute() const
+	{
 		return minute;
 	}
-				int getSecond() const {
+	int getSecond() const
+	{
 		return second;
 	}
-	
-	void DisplayTime() {
-		cout << "HH: " << hour << endl << "MM: " << minute << endl << "SS: " << second << endl;
+
+	void DisplayTime()
+	{
+		cout << "HH: " << hour << endl
+			 << "MM: " << minute << endl
+			 << "SS: " << second << endl;
 	}
-	int asSeconds() const {
+	int asSeconds() const
+	{
 		return (3600 * hour + 60 * minute + second);
 	}
-	
-	friend void operator <<(ostream& out, DayTime& h);
-	friend void operator >>(istream& in, DayTime& h);
-	friend void operator ++(DayTime &MainDayTime);
-	friend void operator --(DayTime& MainDayTime2);
+
+	friend void operator<<(ostream &out, DayTime &h);
+	friend void operator>>(istream &in, DayTime &h);
+	friend void operator++(DayTime &MainDayTime);
+	friend void operator--(DayTime &MainDayTime2);
 };
 
-void operator >> (istream& in, DayTime& h) {
-	cout << "Input hours ( 0 , 24 ): ";	
+void operator>>(istream &in, DayTime &h)
+{
+	cout << "Input hours ( 0 , 24 ): ";
 	in >> h.hour;
 
-	cout << "Input minutes (0 , 60 ): ";	
+	cout << "Input minutes (0 , 60 ): ";
 	in >> h.minute;
 
 	cout << "Input seconds ( 0 ,60 ): ";
 	in >> h.second;
 }
 
-void operator << (ostream& out, DayTime& h) {
-	out << "HH: " << h.hour << endl << "MM: " << h.minute << endl << "SS: " << h.second << endl;
+void operator<<(ostream &out, DayTime &h)
+{
+	out << "HH: " << h.hour << endl
+		<< "MM: " << h.minute << endl
+		<< "SS: " << h.second << endl;
 }
-void operator ++ (DayTime& MainDayTime) {
+void operator++(DayTime &MainDayTime)
+{
 	MainDayTime.second++;
-	if (MainDayTime.second >= 60) {
+	if (MainDayTime.second >= 60)
+	{
 		MainDayTime.second = 0;
 		MainDayTime.minute++;
 	}
-	if (MainDayTime.minute >= 60) {
+	if (MainDayTime.minute >= 60)
+	{
 		MainDayTime.minute = 0;
 		MainDayTime.hour++;
 	}
 }
-void operator -- (DayTime& MainDayTime2) {
+void operator--(DayTime &MainDayTime2)
+{
 	MainDayTime2.minute--;
-	if (MainDayTime2.minute < 0) {
+	if (MainDayTime2.minute < 0)
+	{
 		MainDayTime2.minute = 59;
 		MainDayTime2.hour--;
 	}
 }
 
 // Class 'Dollar' for the program 2
-class Dollar {
+class Dollar
+{
 private:
 	float currency, mktrate, offrate;
 
@@ -85,34 +107,37 @@ class Dollar {
 		mktrate = 9000;
 		offrate = 7000;
 	}
-	float getDollar()  
+	float getDollar()
 	{
-		cout << endl<< "Currency: " << endl;
+		cout << endl
+			 << "Currency: " << endl;
 		return currency;
 	}
-	float  getMarketSoums() 
+	float getMarketSoums()
 	{
 		cout << "Markent currency: " << endl;
-		return currency*mktrate;
+		return currency * mktrate;
 	}
-	float  getofficialSoums() {
+	float getofficialSoums()
+	{
 		cout << "Official currency:" << endl;
-		return currency*offrate;
+		return currency * offrate;
 	}
-	void setRates() 
+	void setRates()
 	{
 		cout << "Enter current market rate: " << endl;
 		cin >> mktrate;
 		cout << "Enter current official rate: " << endl;
 		cin >> offrate;
 	}
-	friend void operator<< (ostream &output, Dollar &p);
+	friend void operator<<(ostream &output, Dollar &p);
 };
 
-void  operator << (ostream &output, Dollar &p)
+void operator<<(ostream &output, Dollar &p)
 {
 	output << "Details of a dollar " << endl;
-	output << "Currency is " << p.currency <<endl<< "Market rate is " << p.mktrate<<endl;
+	output << "Currency is " << p.currency << endl
+		   << "Market rate is " << p.mktrate << endl;
 	output << "Official rate is " << p.offrate << endl;
 }
 
@@ -131,40 +156,45 @@ int main()
 		switch (choice)
 		{
 			// for program 1
-		case 1: {
+		case 1:
+		{
 			system("cls");
 			int choice2;
-			
+
 			DayTime h1(10, 10, 10);
 			DayTime h2;
 			cin >> h2;
-		
+
 			showChoicesforMainMenu2();
 
-			do {
+			do
+			{
 				cin >> choice2;
 				switch (choice2)
 				{
 				case 1:
 					cout << h2;
-					cout << endl << endl;
+					cout << endl
+						 << endl;
 					cout << "Enter your choice: ";
 					break;
 				case 2:
-					cout << h2.asSeconds() <<endl;
+					cout << h2.asSeconds() << endl;
 					cout << "Enter your choice: ";
 					break;
 				case 3:
 					++h2;
-				    h2.DisplayTime();
-				    cout <<	h2.asSeconds();
-					cout << endl << endl;
+					h2.DisplayTime();
+					cout << h2.asSeconds();
+					cout << endl
+						 << endl;
 					cout << "Enter your choice: ";
 					break;
 				case 4:
 					--h2;
 					h2.DisplayTime();
-					cout << endl << endl;
+					cout << endl
+						 << endl;
 					cout << "Enter your choice: ";
 					break;
 				case 5:
@@ -174,33 +204,37 @@ int main()
 				default:
 					system("cls");
 					cout << "Invalid input! Try again." << endl;
-
 				}
 
 			} while (choice2 != 5);
 			break;
 		}
 			// for program 2
-		case 2: {
+		case 2:
+		{
 			system("cls");
 			cout << "\t[2] Currency converter" << endl;
 			Dollar money;
-				cout << money.getDollar() << endl;
-				cout << money.getMarketSoums() << endl;
-				cout << money.getofficialSoums() << endl << endl;
-				money.setRates();
-				cout << money.getDollar() << endl;
-				cout << money.getMarketSoums() << endl;
-				cout << money.getofficialSoums() << endl;
-				cout << "Overloading: " << endl << endl;
-			
-				cout << money;
-		
+			cout << money.getDollar() << endl;
+			cout << money.getMarketSoums() << endl;
+			cout << money.getofficialSoums() << endl
+				 << endl;
+			money.setRates();
+			cout << money.getDollar() << endl;
+			cout << money.getMarketSoums() << endl;
+			cout << money.getofficialSoums() << endl;
+			cout << "Overloading: " << endl
+				 << endl;
+
+			cout << money;
+		}
+		break;
+
+		case 3:
+		{
 		}
-			  break;
+		break;
 
-		case 3: {}
-			  break;
 		default:
 			cout << "Invalid input! Try again." << endl;
 		}
@@ -209,22 +243,26 @@ int main()
 	return 0;
 }
 
-void showChoicesforMainMenu(){
+void showChoicesforMainMenu()
+{
 
-	cout << endl << endl;
+	cout << endl
+		 << endl;
 	cout << "\t\t\t   M A I N  M E N U" << endl;
 	cout << "\t\t\t1: Day Time " << endl;
 	cout << "\t\t\t2: Dollar & Soums" << endl;
 	cout << "\t\t\t3: Exit " << endl;
 	cout << "\t\t\tEnter your choice : ";
 }
-void showChoicesforMainMenu2() {
+
+void showChoicesforMainMenu2()
+{
 	cout << "\t[1] First program" << endl;
 	cout << "\t\t\t   M A I N  M E N U 2" << endl;
 	cout << "\t\t\t1. To Display Time." << endl;
 	cout << "\t\t\t2. To Display Time in Seconds." << endl;
 	cout << "\t\t\t3. To Increment seconds." << endl;
 	cout << "\t\t\t4. To decrements minutes." << endl;
 	cout << "\t\t\t5. Exit." << endl;
-	cout << "\t\t\tEnter your choise : ";
+	cout << "\t\t\tEnter your choice : ";
 }