In this tutorial, we will learn about Type Conversion in Kotlin. In simple words type conversion means converting variable of one data type into another data type. It is important to note in Kotlin doesn't support implicit conversion of smaller data type into larger data type.
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Invalid Type Conversion Example:
var num1 = 10
val num2: Long = num1 //Compile error, type mismatch
Kotlin also supports explicit type conversion. It means a programmer can explicitly convert smaller data type into larger data type and vice-versa. There are helper functions available in Kotlin to do this.
List of helper functions:
- toByte()
- toShort()
- toInt()
- toLong()
- toFloat()
- toDouble()
- toChar()
Explicit Type Conversion Example:
fun main(args : Array<String>) {
var num1 = 10
val num2: Long =num1.toLong()
println(num2)
}
Parvesh Sandila is a results-driven tech professional with 8+ years of experience in web and mobile development, leadership, and emerging technologies.
After completing his Master’s in Computer Applications (MCA), he began his journey as a programming mentor, guiding 100+ students and helping them build strong foundations in coding. In 2019, he founded Owlbuddy.com, a platform dedicated to providing free, high-quality programming tutorials for aspiring developers.
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