CompanionObject.kt

class Log(){

    companion object Factory{
        @JvmStatic fun createFileLog(filename: String):Log = Log(filename)
   //we can access this static function from java using @JvmStatic as Log.createFileLog("File.txt")
    }
    //second companion object not possible
    
    constructor(filename:String):this(){}


    //fun usingFactoryFunction(){
     //   Factory.createFileLog("random")
    //}
    
    //we can access inside member function 

}

fun main(args: Array<String>) {
    val log = Log()
    //val fileLog = Log.Factory.createFileLog("File.txt")
    val fileLog = Log.createFileLog("File.txt")//using companion keyword


}