20170302
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
public class MainActivity extends AppCompatActivity {
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
SharedPreferences pref=getSharedPreferences("Preferences",MODE_PRIVATE);
SharedPreferences.Editor editor=pref.edit();
editor.putString("text","aaaaaaaaaaaaaaa");
editor.commit();
System.out.println(pref.getString("text",""));
}
}