intents and shared

Activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:padding="16dp">
<EditText
android:id="@+id/editTextName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Enter your name"
android:minHeight="48dp" />
<EditText
android:id="@+id/editTextEmail"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Enter your email"
android:inputType="textEmailAddress"
android:minHeight="48dp" />
<Button
android:id="@+id/buttonRegister"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Register" />
</LinearLayout>

MainActivity.java
package com.example.recordfifth;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

import android.widget.Toast;
import androidx.appcompat.app.AppCompatActivity;
public class MainActivity extends AppCompatActivity {
private EditText editTextName, editTextEmail;
private Button buttonRegister;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
editTextName = findViewById(R.id.editTextName);
editTextEmail = findViewById(R.id.editTextEmail);
buttonRegister = findViewById(R.id.buttonRegister);
buttonRegister.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
registerUser();
}
});
}
private void registerUser() {
String name = editTextName.getText().toString().trim();
String email = editTextEmail.getText().toString().trim();
if (name.isEmpty() || email.isEmpty()) {
Toast.makeText(this, "Please fill all fields", Toast.LENGTH_SHORT).show();
return;
}
// Store registration details in SharedPreferences
SharedPreferences sharedPreferences = getSharedPreferences("UserPrefs", MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putString("userName", name);
editor.putString("userEmail", email);
editor.apply();
// Navigate to another activity
Intent intent = new Intent(MainActivity.this, WelcomeActivity.class);
startActivity(intent);
finish(); // Finish this activity
}
}