package com.ridvan.example;import androidx.appcompat.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;public class MainActivity extends AppCompatActivity { private EditText name,lastName; private Button button; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); name = findViewById(R.id.editTextName); lastName = findViewById(R.id.editTextLastName); button = findViewById(R.id.buttonToast); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (name.getText() != null && !name.getText().toString().equals("") && lastName.getText() != null && !lastName.getText().toString().equals("")){ Toast.makeText(MainActivity.this,name.getText().toString()+" " + lastName.getText().toString()+ " Hoş Geldiniz", Toast.LENGTH_LONG).show(); } } }); }}

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity"> <EditText android:id="@+id/editTextName" android:layout_width="match_parent" android:layout_marginStart="30dp" android:layout_marginEnd="30dp" android:layout_marginTop="20dp" android:hint="Name" android:layout_height="wrap_content" /> <EditText android:id="@+id/editTextLastName" android:layout_width="match_parent" android:layout_marginStart="30dp" android:layout_marginEnd="30dp" android:layout_marginTop="20dp" android:hint="Last Name" android:layout_below="@+id/editTextName" android:layout_height="wrap_content" /> <Button android:layout_width="wrap_content" android:layout_below="@+id/editTextLastName" android:layout_marginTop="20dp" android:id="@+id/buttonToast" android:layout_alignParentEnd="true" android:layout_marginEnd="30dp" android:layout_height="wrap_content" android:text="Toast Get"/></RelativeLayout>