Translation from java to kotlin was done

app/build.gradle

@@ -1,6 +1,7 @@
 plugins {
     id 'com.android.application'
 }
+apply plugin: 'kotlin-android'
 
 android {
     compileSdkVersion 30
@@ -35,4 +36,10 @@ dependencies {
     testImplementation 'junit:junit:4.+'
     androidTestImplementation 'androidx.test.ext:junit:1.1.2'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
+    implementation "androidx.core:core-ktx:+"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+
+}
+repositories {
+    mavenCentral()
 }

app/src/main/AndroidManifest.xml

@@ -9,15 +9,15 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.KotlinHomeWork">
-        <activity android:name=".MainActivity">
+        <activity android:name=".MainActivity2">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
         <activity
-            android:name=".SecondActivity"
+            android:name=".SecondActivity2"
             android:exported="false"
             android:windowSoftInputMode="adjustResize" />
     </application>

app/src/main/java/com/example/kotlinhomework/MainActivity2.kt

@@ -0,0 +1,62 @@
+package com.example.kotlinhomework
+
+import android.annotation.SuppressLint
+import android.app.Activity
+import android.content.Intent
+import android.os.Bundle
+import android.widget.Button
+import android.widget.TextView
+import androidx.appcompat.app.AppCompatActivity
+
+
+class MainActivity2 : AppCompatActivity() {
+
+    private lateinit var greetings: String
+    private lateinit var name: String
+    private lateinit var textView: TextView
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+
+        greetings = getString(R.string.hello)
+        name = if(savedInstanceState?.getString(NAME_KEY) != null)
+            savedInstanceState.getString(NAME_KEY)!!
+        else getString(R.string.anon)
+
+        textView = findViewById(R.id.textViewHello)
+        val button: Button = findViewById(R.id.buttonNameYourSelf)
+
+        button.setOnClickListener {
+            val intent = Intent(this@MainActivity2, SecondActivity2::class.java)
+            startActivityForResult(intent, SecondActivity2.GET_NAME_REQUEST_CODE)
+        }
+    }
+
+    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+        super.onActivityResult(requestCode, resultCode, data)
+
+        if (requestCode == SecondActivity2.GET_NAME_REQUEST_CODE && resultCode == Activity.RESULT_OK && data != null){
+            val nameFromData = data.getStringExtra(SecondActivity2.NAME_KEY)
+            if(nameFromData != null)
+                name = nameFromData
+        }
+
+    }
+
+    @SuppressLint("SetTextI18n")
+    override fun onResume() {
+        super.onResume()
+        textView.text = "$greetings, $name!"
+
+    }
+
+    override fun onSaveInstanceState(outState: Bundle) {
+        super.onSaveInstanceState(outState)
+        outState.putString(NAME_KEY, name)
+    }
+
+    companion object{
+        const val NAME_KEY: String = "com.example.kotlinhomework.MainActivity.NAME_KEY"
+    }
+}