package com.example.android.justjava


import android.os.Bundle
import android.support.v7.app.AppCompatActivity
import android.view.View
import android.widget.TextView
import java.text.NumberFormat

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
    }

        fun submitOrder(view: View) {
        int numberOfCoffees 2
        display(numberOfCoffees)
        displayPrice(numberOfCoffees * 5)
    }


    fun display(number: Int) {
        val quantityTextView = findViewById<View>(R.id.quantity_text_view) as TextView
        quantityTextView.text = ("" + number)
    }


    private fun displayPrice(number: Int) {
        val priceTextView = findViewById<View>(R.id.price_text_view) as TextView
        priceTextView.setText(NumberFormat.getCurrencyInstance().format(number))
    }
}
Выдаёт ошибки
Error:(32, 9) Unresolved reference: int
Error:(33, 17) Unresolved reference: numberOfCoffees
Error:(34, 22) Unresolved reference: numberOfCoffees
Error:Execution failed for task ':app:compileDebugKotlin'.
> Compilation error. See log for more details
Information:BUILD FAILED in 1s
Information:4 errors
Information:0 warnings
Information:See complete output in console
Вот в этом тексте, не знаю как задать переменную правильно.
"fun submitOrder(view: View) {
        int numberOfCoffees 2
        display(numberOfCoffees)
        displayPrice(numberOfCoffees * 5)"