혀가 길지 않은 개발자

activity_main.xml MainActivity.java package com.jwsoft.javaproject; import androidx.appcompat.app.AlertDialog; import androidx.appcompat.app.AppCompatActivity; import android.content.DialogInterface; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.Toast; public class MainActivity extends AppCompatActivity { AlertDialog alertDialog; @Overrid..

activity_main.xml MainActivity.kt package com.jwsoft.kotlinproject import android.content.DialogInterface import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.widget.Toast import androidx.appcompat.app.AlertDialog import kotlinx.android.synthetic.main.activity_main.* class MainActivity : AppCompatActivity() { lateinit var alertDialog: AlertDialog override fun o..