OPERATORS

Arithmetic Operators

Arithmetic operators perform basic mathematical operations. Kotlin supports the following arithmetic operators:

1. Addition (+):
   • Adds two values.
   • Example: val sum = 5 + 3 // sum is 8
2. Subtraction (``):
   • Subtracts the second value from the first.
   • Example: val difference = 5 - 3 // difference is 2
3. Multiplication (``):
   • Multiplies two values.
   • Example: val product = 5 * 3 // product is 15
4. Division (/):
   • Divides the first value by the second.
   • Example: val quotient = 6 / 3 // quotient is 2
5. Modulus (%):
   • Returns the remainder of the division.
   • Example: val remainder = 5 % 3 // remainder is 2

Relational Operators

Relational operators are used to compare two values. The result of a relational operation is a Boolean value (true or false). Kotlin supports the following relational operators:

1. Equal to (==):
   • Checks if two values are equal.
   • Example: val isEqual = 5 == 3 // isEqual is false
2. Not equal to (!=):
   • Checks if two values are not equal.
   • Example: val isNotEqual = 5 != 3 // isNotEqual is true
3. Greater than (>):
   • Checks if the first value is greater than the second.
   • Example: val isGreater = 5 > 3 // isGreater is true
4. Less than (<):
   • Checks if the first value is less than the second.
   • Example: val isLess = 5 < 3 // isLess is false
5. Greater than or equal to (>=):
   • Checks if the first value is greater than or equal to the second.
   • Example: val isGreaterOrEqual = 5 >= 3 // isGreaterOrEqual is true
6. Less than or equal to (<=):
   • Checks if the first value is less than or equal to the second.
   • Example: val isLessOrEqual = 5 <= 3 // isLessOrEqual is false

Increment and Decrement Operators

Increment and decrement operators are used to increase or decrease the value of a variable by one.

1. Increment Operator (++):

   • Increases the value of a variable by one.

   • Prefix Increment: ++variable

     • The variable is incremented first, then its value is used.

     • Example:

       var a = 5
       val b = ++a  // a is 6, b is 6
       
       

   • Postfix Increment: variable++

     • The variable's value is used first, then it is incremented.

     • Example:

       var a = 5
       val b = a++  // a is 6, b is 5