# Operators

It is used to operate on variables and values. We can examine it under 4 main headings.

We will see "if" statement in Conditional Expressions section. However, since we will use it in this section, if we talk about it briefly, condition part works if it is "true", it does not work if it is "false".

Example:

if(true) print("true");

if(false) print("false");

if(1==1) print("1 is equal to 1");

/*

Output:

true

1 is equal to 1

*/

## Arithmetic Operators

Example:

print(5+10+15); //Output: 20

Text name="HAK";

print("Hello "+name); //Output: Hello HAK

Subtraction(-): Subtracts values.

Example:

Int num=100;

print(num-10-20); //Output: 70

Multiplication(*): Multiplies values.

Example:

print(10*(5-3)); //Output: 20

print(2.5*2); //Output: 5

Division(/): Divides values.

Example:

Int num=50;

print("10% of number {num} becomes {num*10/100}."); //Output: 10% of the number 50 becomes 5.

print(10/4); //Output: 2

print(10.0/4); //Output: 2,5

Remainder(%): Finds remainder from division of values.

Example:

print(10%4); //Output: 2

print(10.0%4); //Output: 2.0

print(19%5%3); //Output: 1

Increment by 1(++): Increments variable by 1.

Example:

Int num=0;

num++;

print(num); //Output: 1

++num;

print(num); //Output: 2

Decrease by 1(--): Decreases variable by 1.

Example:

Int num=5;

num--;

print(num); //Output: 4

--num;

print(num); //Output: 3

We put increment and decrement operators before or after and it apparently did same thing. If increment or decrement operator is on right, value is returned first, then incremented by 1, if it is on left, it is incremented by 1 and then value is returned.

Example:

Int num1=0;

print(num1++); //Output: 0

Int num2=5;

print(--num2); //Output: 4

## Assignment Operators

It is used to assign values to objects or variables. Assigns value on right to object or variable on left.

Assignment(=)

Example:

Int num=5;

print(num); //Output: 5

Text message="Hello";

print(message); //Output: Hello

Assignment with Arithmetic Operators

Usage: <ArithmeticOperator>=

Let's add 5 to number.

Int num=1;

num+=5;

print(num); //Output: 6

Let's subtract 10 from number.

Int num=50;

num-=10;

print(num); //Output: 40

Let's multiply number by 2.

Int num=15;

num*=2;

print(num); //Output: 30

Let's divide number by 5.

Int num=10;

num/=5;

print(num); //Output: 2

Let's assign remainder of number to number.

Int num=11;

num%=5;

print(num); //Output: 1

## Comparison Operators

Compares value to right with value to left.

If Equal(==)

Example:

//Output: Logged In

If Not Equal(!=)

Example:

//Output: Passwords are not same

If Greater(>)

Example:

Int phone=6; //inch

Int tablet=10; //inch

if(tablet>phone) print("Tablet is bigger than phone");

//Output: Tablet is bigger than phone

If Less(<)

Example:

Int score=49;

if(score<50) print("Failed");

//Output: Failed

If Greater or Equal(>=)

Example:

Int score=60;

if(score>=50) print("Passed");

//Output: Passed

If Less or Equal(<=)

Example:

Int productPrice=40;

Int availableMoney=50;

if(productPrice<=availableMoney){

availableMoney-=productPrice;

print("Purchased\nMoney Remaining: {availableMoney}");

}

/*

Output:

Purchased

Money Remaining: 10

*/

## Logical Operators

It is used to specify logic between variables or values.

And(&&): Returns "true" if value to right and left is "true".

Example:

Truth hasNeed=true;

Truth hasMoney=true;

if(hasNeed && hasMoney) print("Can buy");

Or(||): Returns "true" if value to right or left is "true".

Example:

Truth nextToID=false;