import java.util.zip.CRC32
import java.nio.charset.StandardCharsets
object Main {
/**
* Calculates the CRC32 checksum of a string.
*
* @param input The string to hash.
* @return The CRC32 value as an 8‑character uppercase hex string.
*/
def crc32OfString(input: String): String = {
// Create a CRC32 instance (from Java standard library)
val crc = new CRC32()
// Convert the string to UTF‑8 bytes
val bytes = input.getBytes(StandardCharsets.UTF_8)
// Feed the bytes into the CRC32 calculator
crc.update(bytes)
// Get the computed CRC32 value (stored as a long)
val value = crc.getValue
// Format as 8‑digit uppercase hexadecimal (standard CRC32 format)
f"$value%08X"
}
def main(args: Array[String]): Unit = {
val text = "Scala Programming"
// Compute the CRC32 of the string
val crc = crc32OfString(text)
println(s"CRC32: $crc")
}
}
/*
run:
CRC32: FABB9B1D
*/
