Compile and Execute Swift Online

import UIKit
// Class
// acess modifires
// 1-private
// 2-public
// 3-internal

class student
{
    private var name:String
    private var sal:Float
     var id:Int
    
    init(name:String,sal:Float,id:Int)
    {
     self.id = id
     self.sal=sal
     self.name=name
    }
    func setName(name:String)
    {
     self.name=name
    }
    func getName()->String
    {
      return self.name
    }
    func setSal(sal:Float)
    {
        if sal>0
        {
         self.sal = sal
        }
        else
        {
          print("please enter logical value")
        }
    }
    func getSal()->Float
    {
      return self.sal
    }
    
}
var s = student(name: "mahmoud", sal: 3000, id: 1)
s.setSal(sal: -4000)
print(s.getSal())