If-Else and Switch case

#include <iostream>
using namespace std;

// wap to find max age among two students
void maxAge()
{
    int age1, age2;
    cout << "Enter age of two students : " << endl;
    cin >> age1 >> age2;
    if (age1 > age2)
    {
        cout << "Student 1st is older than student 2  " << endl;
    }
    else if (age1 == age2)
    {
        cout << "Both students are of same age  " << endl;
    }
    else
    {
        cout << "Student 2nd is older than student 1st " << endl;
    }
}

// wap to find largest number among three numbers

void largestAmong3Numbers()
{
    int a, b, c;
    cout << "Enter three numbers : " << endl;
    cin >> a >> b >> c;
    if (a > b & a > c)
    {
        cout << a << " is the largest " << endl;
    }
    else if (b > a & b > c)
    {
        cout << b << " is the largest " << endl;
    }
    else if (c > a & c > b)
    {
        cout << c << " is the largest " << endl;
    }
}

// wap to find whether number is negative or positive

void posNeg()
{
    int a;
    cout << "Enter number to find it is negative or positive : " << endl;
    cin >> a;
    if (a < 0)
    {
        cout << a << " is a negative number " << endl;
    }
    else if (a > 0)
    {
        cout << a << " is a positive number  " << endl;
    }
    else
    {
        cout << "number entered is = 0" << endl;
    }
}

// wap to check number is even or odd

void evenOdd()
{
    int n;
    cout << "Enter number to find it is Even or Odd " << endl;
    cin >> n;
    if (n % 2 == 0)
    {
        cout << n << " is an Even number " << endl;
    }
    else
    {
        cout << n << " is a Odd number " << endl;
    }
}

// wap to check year is leap year or not

void leapYear()
{
    int year;
    cout << "Enter year : " << endl;
    if (year % 400 == 0)
    {
        cout << year << " is a leap year " << endl;
    }
    else if (year % 100 == 0)
    {
        cout << year << " is not a leap year " << endl;
    }
    else if (year % 4 == 0)
    {
        cout << year << " is a leap year " << endl;
    }
    else
    {
        cout << year << " is not a leap year " << endl;
    }
}

// wap to check character is vowel or consonant

void vowelOrConsonant()
{
    char ch;
    cout << "Enter a alphabet : " << endl;
    cin >> ch;
    if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u' || ch == 'A' || ch == 'E' || ch == 'I' || ch == 'O' || ch == 'U')
    {
        cout << ch << " is a vowel " << endl;
    }
    else
    {
        cout << ch << " is a consonant " << endl;
    }
}

// largest among two numbers

void largestAmong2Num()
{
    int a, b;
    cout << "Enter two numbers : " << endl;
    cin >> a >> b;
    if (a > b)
    {
        cout << a << " is a larger number " << endl;
    }
    else if (b > a)
    {
        cout << b << " is a larger number " << endl;
    }
    else
    {
        cout << a << " and " << b << " are eqaul " << endl;
    }
}

// ????   Swich case programs   ????//

// wap to make simple calculations for all arithmatic operations

void arithmaticCalculations()
{
    int op;
    cout << "Enter 1 to perform Addition : " << endl;
    cout << "Enter 2 to perform Substraction : " << endl;
    cout << "Enter 3 to perform Multiplicaton : " << endl;
    cout << "Enter 4 to perform Division : " << endl;
    cin >> op;

    float a, b, result;
    cout << "Enter a number : " << endl;
    cin >> a;
    cout << "Enter another number : " << endl;
    cin >> b;

    switch (op)
    {
    case 1:
        result = a + b;
        cout << "Addition of " << a << " and " << b << " is " << result << endl;
        break;

    case 2:
        result = a - b;
        cout << "Subtraction of " << a << " and " << b << " is " << result << endl;
        break;

    case 3:
        result = a * b;
        cout << "Multiplication of " << a << " and " << b << " is " << result << endl;
        break;

    case 4:
        result = a / b;
        cout << "Division of " << a << " and " << b << " is " << result << endl;
        break;
    }
}
// wap to check vowel or consonant

void vowelOrConsonantSwitch()
{

    char ch;
    cout << "Enter a character : " << endl;
    cin >> ch;
    switch (ch)
    {

    case 'a':
        cout << "Entered alphabet is a vowel : " << endl;
        break;
    case 'e':
        cout << "Entered alphabet is a vowel : " << endl;
        break;
    case 'i':
        cout << "Entered alphabet is a vowel : " << endl;
        break;
    case 'o':
        cout << "Entered alphabet is a vowel : " << endl;
        break;
    case 'u':
        cout << "Entered alphabet is a vowel : " << endl;
        break;

    default:
        cout << "Entered alphabet is a consonant : " << endl;
    }
}
void dayOfWeek()
{
    int day;
    cout << "Enter number : " << endl;
    cin >> day;
    switch (day)
    {
    case 1:
        cout << "Monday " << endl;
        break;

    case 2:
        cout << "Tuesday " << endl;
        break;

    case 3:
        cout << "Wednesday " << endl;
        break;

    case 4:
        cout << "Thursday " << endl;
        break;

    case 5:
        cout << "Friday " << endl;
        break;

    case 6:
        cout << "Saturday " << endl;
        break;

    case 7:
        cout << "Sunday " << endl;
        break;
    }
}

int main()
{
    cout << "  -+-+-+-+->   All programs : Part - 2   <-+-+-+-+-  " << endl;
    cout << endl;

    // programs using if-else

    cout << " -+-+-+-+-> Programs using if-Else <-+-+-+-+- " << endl;
    cout << endl;
    cout << "Enter number to run respective program : " << endl;
    cout << endl;
    cout << "Enter 1 to find maximum age of two students : " << endl;
    cout << "Enter 2 to find the largest number among three numbers : " << endl;
    cout << "Enter 3 to find whether a number is negative or positive : " << endl;
    cout << "Enter 4 to check if the number is even or odd : " << endl;
    cout << "Enter 5 to check whether a year is leap year or no t : " << endl;
    cout << "Enter 6 to check whether entered character is vowel or consonant : " << endl;
    cout << "Enter 7 to find the largest number among two numbers : " << endl;

    // programs using switch case
    cout << endl;
    cout << " -+-+-+-+-> Programs using Switch case <-+-+-+-+- " << endl;
    cout << endl;
    cout << "Enter 8 to make simple calculation for all arithmatic operations ( + , - , * , / ) : " << endl;
    cout << "Enter 9 to check whether the entered character is vowel or consonant : " << endl;
    cout << "Enter 10 to display day of the week as users choice : " << endl;

    int count;
    cout << endl;
    cout << "Enter program number that you are willing to run : " << endl;
    cin >> count;
    cout << endl;

    switch (count)
    {

    case 1:
        maxAge();
        break;

    case 2:
        largestAmong3Numbers();
        break;

    case 3:
        posNeg();
        break;

    case 4:
        evenOdd();
        break;

    case 5:
        leapYear();
        break;

    case 6:
        vowelOrConsonant();
        break;

    case 7:
        largestAmong2Num();
        break;

    case 8:
        arithmaticCalculations();
        break;

    case 9:
        vowelOrConsonantSwitch();
        break;

    case 10:
        dayOfWeek();
        break;
    }

    return 0;
}