Conditional Statements in c++: if-else

              Conditional statements are the decision-making statements which makes the program to flow in a direction based on the inputs.

In c++, the list is given below….

  • 1.      If-else
  • 2.      Switch
  • 3.      Ternary operator

Each one is explained with an example.

‘if-else’:

              The most commonly used conditional statement is ‘if-else’. It has the following syntax..

‘if’ statement:

If(condition) {

……………………………….

}

C++ Program:

#include <iostream>

using namespace std;

int main() {

    int a;

    cout <<"Enter the number"<<endl;

    cin >> a;

        if (a>1)

    {

        cout<<"a is greater than 1"<<endl;

    }

     return 0;

 Output:

  Enter the number

  78

  a is greater than 1

‘if-else’ statement:

If(condition) {

---------------------------

}

Else {

---------------------------

}

C++ Program:

#include <iostream>

using namespace std;

int main() {

   int x,y;

   cout <<"Enter the two numbers to compare:"<<endl;

   cin >>x >>y;

       if(x>y){

        cout<<"x is greater than y"<<endl;

    }

    else {

        cout<<"y is greater than x"<<endl;

    }

    return 0; }

Output:

Enter the two numbers to compare:

89 90

y is greater than x

‘if-else if -else’ statement:

If(condition) {

----------------------------

}

Else if(Condition) {

----------------------------

}

Else {

----------------------------

 }

The code is given below

C++ Program:

 #include <iostream>

using namespace std;

int main()

{

  int b,c,d;

  cout <<"enter the three numbers to compare:"<<endl;

   cin >> b>>c>>d;

   if(b>c && b>d)

    {

        cout<<"b is greater among three";

    }

    else if(c>d){

        cout<<"c is greater than d"<<endl;

    }

    else

    {

        cout<<"d is greater than c";

    }

      return 0;

}

Output:

enter the three numbers to compare:

76 45 90

d is greater than c

These are the three different ways of using if, if else and if, elseif ,else statements in C++. Hope, this code is useful to you. Keep Coding!!!

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