let st = new Student("Ali", 17.5)
class Student {
     #name = ""
     #ave = 0
     constructor(name, ave){
       this.#name = name
       this.#ave = ave
     }
     display(){
       document.write("<b>Name = " + this.#name)
       document.write("<br>Average = " + this.#ave)
     }
}
