Operators works on operands and used for calculation. For example, + is an operator and when I use it in a expression like this: a+b, it performs addition on operands a & b. In this guide, we will learn types of operators available in Kotlin and how to use them.
Operators in Kotlin are grouped in following categories:
1. Arithmetic operators
2.
1. Arithmetic Operators
- + Addition Operator
- – Subtraction Operator
- * Multiplication Operator
- / Division Operator
- % Modulus Operator
Example of Arithmetic Operators
fun main(args: Array<String>) {
val num1 = 101.99
val num2 = 100.50
var op: Double
op = num1 + num2
println("Addition: $op")
op = num1 - num2
println("Subtraction: $op")
op = num1 * num2
println("Multiplication: $op")
op = num1 / num2
println("Division: $op")
op = num1 % num2
println("Modulus: $op")
}
Output:
Addition: 202.49 Subtraction: 1.4899999999999949 Multiplication: 10249.994999999999 Division: 1.014825870646766 Modulus: 1.4899999999999949
The Addition operator (+) is also used for the string concatenation. You can read about it here:
String Concatenation in Kotlin
Note: This guide is incomplete. More content is going to be added soon.