Assignment Operators

Assignment Operator: (=, +=, -=, *=, /=, %=...)

1. equal to (=)

It is used to assign a value to a variable.

Example 1 :

#include <iostream>
using namespace std;

int main() {

    int balance = 500; // assignment operator

    cout<<balance;

    return 0;
}

Output :

500

Explanation :

Line 6 : we declare a variable named balanced and assign it a value of 500.
Line 8 : Using cout<< we can print the balance variable.

Example 2 :

#include <iostream>
using namespace std;

int main() {

    int balance = 0;
    cout<<"Balance = "<<balance<<"\n";

     balance = balance + 499;

    cout<<"Balance = "<<balance;

    return 0;
}

Output

Balance = 0

Balance = 499

Explanation :

Line 6 : we declare a variable named balanced and assign it a value of 0.
Line 7 : Using cout<< we can print the balance variable.
Line 9 : In this line in balance variable add the value of 499 and then store into balance variable.
Line 11 : Using cout<< we can print the balance variable.

2. plus equal to (+=)

The plus equal to operator (+=) adds a value to the current value of a variable.

Example 3 : Addition of two numbers

#include <iostream>
using namespace std;

int main() {

    int balance = 499

    balance += 999;  // plus assignment

    cout<<balance;

    return 0;
}

Output :

1498

Explanation :

Line 6 : we declare a variable named balanced and assign it a value of 499.
Line 8 : In this line first we add the value 499 then assign value to the balance variable.
Line 10 : Using cout<< we can print the balance variable.

3. minus equals to (-=)

The minus equals to operator (-=) subtracts a value from the current value of a variable.

Example 4 : Subtraction of two numbers

#include <iostream>
using namespace std;

int main() {

    int balance = 400;

    balance -= 100 //minus assignment

    cout<<num;

    return 0;
}

Output :

300

Explanation :

Line 6 : we declare a variable named balanced and assign it a value of 400.
Line 8 : In this line first we minus the value 100 then assign value to the balance variable.
Line 10 : Using cout<< we can print the balance variable.

4. multiplication equals to (*=)

The multiplication equals to operator (*=) multiplication a value from the current value of a variable.

Example 5 : Multiplication of two numbers

#include <iostream>
using namespace std;

int main() {
    int num=10;

   num *=5;  // multiply assignment

    cout<<num;

    return 0;
}

Output :

50

Explanation :

Line 5 : we declare a variable named num and assign it a value of 10.
Line 7 : In this line first we multiply the value 5 then assign value to the num variable.
Line 9 : Using cout<< we can print the num variable.

5. division equals to (/=)

The division equals to operator (/=) division a value from the current value of a variable.

Example 6 : Division of two numbers

#include <iostream>
using namespace std;

int main() {

    int num=10;

   num /=2;  //division assignment

    cout<<num;

    return 0;
}

Output :

5

Explanation :

Line 6 : we declare a variable named num and assign it a value of 10.
Line 8 : In this line first we divide the value 2 then assign value to the num variable.
Line 10 : Using cout<< we can print the num variable.

6. modulus equals to (%=)

The modulus equals to operator (%=) modulus a value from the current value of a variable.

Example 7 :

#include <iostream>
using namespace std;

int main() {

     int num = 10;

   num %=3;   //mod assignment

    cout<<num;

    return 0;
}

Output :

1

Explanation :

Line 6 : we declare a variable named num and assign it a value of 10.
Line 8 : In this line first we mod the value 3 then assign value to the num variable.
Line 10 : Using cout<< we can print the num variable.

Assignment Operators