Why am i encountering 'nullpointerexception' in kotlin?

In Kotlin, the language is designed to be null-safe. However, when interoperating with Java or bypassing null-safety checks, you may encounter the dreaded NullPointerException.

Example:

val name: String? = null
println(name!!.length)

Solution:

val name: String? = null
println(name?.length ?: "Variable is null")

Use the safe call operator `?.` and the Elvis operator `?:` to handle nullable types gracefully.