CreateData-SharedPreferences

package zihadrizkyef.learn.sharedpreferences;

import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class CreateData extends AppCompatActivity {
    EditText etName, etAge, etEmail;
    Button bSave;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_create_data);

        etName = (EditText) findViewById(R.id.etName);
        etAge = (EditText) findViewById(R.id.etAge);
        etEmail = (EditText) findViewById(R.id.etEmail);
        bSave = (Button) findViewById(R.id.bSave);

        bSave.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                SharedPreferences sharedpreferences = getSharedPreferences("test.sp", Context.MODE_PRIVATE);
                SharedPreferences.Editor editor = sharedpreferences.edit();
                editor.putString("key", "value");
                editor.commit();

                Toast.makeText(CreateData.this, "Data has been successfully saved", Toast.LENGTH_SHORT).show();
                Intent myintent = new Intent(CreateData.this, LoadData.class);
                startActivity(myintent);
            }
        });
    }
}