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downloads/01-Fibonacci.cpp

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+// CPP Program to Print Fibonacci Number Series
+#include <iostream>
+using namespace std;
+
+int main()
+{
+	int num = 7, i, current;
+	int last = 0, prev = 1;
+	cout << "Fibonacci Series : ";
+
+	for(i = 1; i <= num; i = i + 1){
+		cout << last << "\t";
+		current = last + prev;
+		last = prev;
+		prev = current;
+	}
+	return 0;
+}

downloads/02-LeapYear.cpp

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+// CPP Program to check whether the year entered is Leap Year or not.
+#include <iostream>
+using namespace std;
+
+int main(){
+
+	int year;
+	cout<<"Enter a Year : ";
+	cin>>year;
+
+	if((year % 400 == 0) && (year % 4 == 0 || year % 100 != 100)){
+	    cout<<"Year "<< year << " is a Leap Year";
+	} else {
+		cout<<"Year "<< year <<" is not a Leap Year";
+	}
+	return 0;
+}

downloads/03-SimpleClass.cpp

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+// CPP Program to demonstrate Classes and Objects.
+#include <iostream>
+using namespace std;
+
+class System{
+
+	public:
+		int sys_no;
+		string System_name;
+};
+
+int main(){
+
+	System sys1;
+	sys1.sys_no = 01;
+	sys1.System_name = "HP System 01";
+
+	cout<<sys1.sys_no<<endl;
+	cout<<sys1.System_name<<endl;
+	return 0;
+}

downloads/04-PrimeNumber.cpp

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+// CPP Program to check entered number is prime or not.
+#include <iostream>
+using namespace std;
+
+int main()
+{
+	int num;
+	cout << "Enter a Number : ";
+	// Taking input from the User
+	cin >> num;
+
+	if(num < 2)
+	{
+		cout << "NOT PRIME";
+		return 0;
+	}
+	else
+	{
+		for(int i = 2;i < num;i++)
+		{
+			if(num % i == 0){
+				cout << "NOT PRIME";
+				return 0;
+			}
+				}		
+			cout << "PRIME";
+	}
+}

downloads/05-Reverse.cpp

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+// CPP Program to print the reversed number of entered number.
+#include <iostream>
+using namespace std;
+
+int main(){
+
+	int num, ans = 0, rem;
+	cout << "Enter a Number : ";
+	// Taking input from User
+	cin >> num;
+
+	while(num > 0){
+		rem = num % 10;
+		num /= 10;
+
+		ans = ans * 10 + rem;
+	}	
+	cout << "Reverse of entered number is : " << ans << endl;
+	return 0;
+}

downloads/06-ClassObjects.cpp

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+// CPP Program to store the information of 10 Students using Object arrays in CPP Classes.
+#include <iostream>
+using namespace std;
+
+// Declaring a student class
+class Student {
+    public:
+        int rollNumber;
+        float marks;
+
+        void setInfo(int rollNumber, float marks){
+            this -> rollNumber = rollNumber;
+            this -> marks = marks;
+        }
+
+        void displayInfo() {
+            cout << "Roll Number : " << rollNumber << endl;
+            cout << "Marks : " << marks << endl;
+        }
+};
+
+int main(){
+
+    Student students[10];
+
+    for(int i = 0; i < 10;i = i + 1){
+        string name;
+        int rollNumber;
+        float marks;
+
+        cout << "Enter information for student: "<< (i + 1) << ":" << endl;
+        cout << "Roll Number: ";
+        cin >> rollNumber;
+        cout << "Marks: ";
+        cin >> marks;
+
+        students[i].setInfo(rollNumber, marks);
+    }
+
+    cout << "Information of all Students: "<<endl;
+    for(int i = 0; i < 10; i = i + 1){
+        students[i].displayInfo();
+    }
+    return 0;
+}

downloads/07-Factorial.cpp

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+// CPP Program to find the factorial of entered number.
+#include <iostream>
+using namespace std;
+
+int main(){
+
+    int num, i , fact = 1;
+    cout << "Enter a Number: ";
+    // Taking input from User
+    cin >> num;
+
+    if(num == 0){
+        cout << "The factorial of 0 is 1"<<endl;
+    } 
+    else if(num < 0){
+        cout << "Please Enter a Number that is greater than or equal to 0"<<endl;
+    } else{
+        for(i = 1; i <= num; i = i + 1){
+            fact *= i;
+        }
+        cout << "The factorial of "<< num << " is : "<< fact<<endl;
+    }
+
+    return 0;
+}

downloads/08-PN-series.cpp

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+#include <iostream>
+using namespace std;
+
+bool isPrime(int number) {
+    if (number < 2) {
+        return false;
+    } else {
+        for (int i = 2; i * i <= number; i++) {
+            if (number % i == 0) {
+                return false;
+            }
+        }
+    }
+    return true;
+}
+
+void displayPrimes(int number) {
+    for (int i = 2; i <= number; i++) {
+        if (isPrime(i)) {
+            cout << i << " ";
+        }
+    }
+}
+
+int main() {
+    int num;
+    cout << "Enter a number up to which you want to print the prime number series: ";
+    cin >> num;
+    displayPrimes(num);
+
+    return 0;
+}

downloads/09-constructor.cpp

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+#include <iostream>
+using namespace std;
+
+class Car {
+    public:
+        string brand;
+        string model;
+        // Default constructor
+        Car(string brand, string model){
+            cout << brand <<" " << model << endl;
+        }
+};
+
+int main () {
+
+    Car One("BMW","X5");
+    Car Two("Ford","Mustang");
+
+    return 0;
+} 

downloads/10-funOver.cpp

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+#include <iostream>
+using namespace std;
+
+int add (int a, int b) {
+    return a + b;
+}
+
+double add (double a, double b) {
+    return a + b;
+}
+
+int main () {
+
+    int sum1 = add (3,4);
+    double sum2 = add (3.3,4.4);
+
+    cout << "Sum of Integers: " << sum1 << endl;
+    cout << "Sum of doubles: " << sum2 << endl;
+
+    return 0;
+}

downloads/11-operatorOver.cpp

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+#include <iostream>
+using namespace std;
+
+class ComplexNum {
+    private:
+        int real, imag;
+    public:
+        ComplexNum(int r = 0, int i = 0){
+            real = r;
+            imag = i;
+        }    
+
+        ComplexNum operator+ (ComplexNum const& obj){
+            ComplexNum res;
+            res.real = real + obj.real;
+            res.imag = imag + obj.imag;
+            return res;
+        }
+        void print() {
+            cout << real << " + i"<< imag << endl;
+        }
+};
+
+int main() {
+
+    ComplexNum c1(10, 5), c2(2, 4);
+
+    ComplexNum c3 = c1 + c2;
+    c3.print();
+
+    return 0;
+}

downloads/eldestPerson.cpp

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+#include <iostream>
+using namespace std;
+
+int main(){
+    int N;
+    cout << "Enter the number of Persons : ";
+    cin >> N;
+
+    struct {
+        string firstName, lastName;
+        int age;
+    } Person[N];
+
+    // info lene ke liye loop
+    for(int i = 0; i < N; i++){
+        cout <<"\nEnter details of Person " << i + 1 << ":\n";
+        cout << "Enter First Name: ";
+        cin >> Person[i].firstName;
+        cout << "Enter Last Name: ";
+        cin >> Person[i].lastName;
+        cout << "Enter the Age: ";
+        cin >> Person[i].age;
+    }
+
+    int eldestAge = 0;
+    for (int i = 1; i < N; i++) {
+        if(Person[i].age > Person[eldestAge].age){
+            eldestAge = i;
+        }
+    }
+
+    cout << "\n The eldest person is: \n";
+    cout << "Name: " << Person[eldestAge].firstName << + " " << Person[eldestAge].lastName << endl;
+    cout << "Age: " << Person[eldestAge].age << endl;
+    return 0;
+}

downloads/netsalary.cpp

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+#include <iostream>
+using namespace std;
+
+int main(){
+
+    int N;
+    cout << "Enter the number of employees : ";
+    cin >> N;
+
+    struct {
+        string firstName, lastName;
+        float basicSalary, deduction, netSalary;
+    } employees[N];
+
+    for (int i = 0; i < N; i++){
+        cout << "\nEnter details of employee " << i+1 << ":\n";
+        cout << "Enter First Name: ";
+        cin >> employees[i].firstName;
+        cout << "Enter Last Name: ";
+        cin >> employees[i].lastName;
+        cout << "Basic Salary: ";
+        cin >> employees[i].basicSalary;
+        cout << "Deductions: ";
+        cin >> employees[i].deduction;
+
+        // net salary calculate krne ke liye
+        // net salary = basis salary - deductions
+        employees[i].netSalary = employees[i].basicSalary - employees[i].deduction;
+    }
+
+
+    for (int i = 0; i < N; i++) {
+        cout << "\n\n\nDetails of employee " << i+1 << ":\n";
+        cout << "Name: " << employees[i].firstName << "" << + " " << employees[i].lastName << "\n";
+        cout << "Net Salary: " << employees[i].netSalary << "\n";
+    }
+
+
+    return 0;
+}

downloads/new.cpp

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+#include <iostream>
+using namespace std;
+int main()
+{
+
+
+    int *s = new int;
+
+    *s = 32;
+
+    cout << "Value of s is " << *s << endl;
+    cout << "Memory location is " << &s << endl;
+
+    delete s;
+    return 0;
+}