Scala IO reads binary files

import java.io.{
    File, FileInputStream}

object D05_ Read binary  {
    

  def main(args: Array[String]): Unit = {
    
    val file = new File("./data/4.png")
    val fis = new FileInputStream(file)
    // val buf = new Array[Byte](file.length().toInt) //  Writing at work 
    val buf = new Array[Byte](888888)
    val len = fis.read(buf)
    println(" Number of valid bytes read ：" + len)
    println(" The length of the byte array ：" + buf.length)
  }

}

4.png

4.png Location