安卓应用中邮箱密码的保存位置(使用JavaMail接口)？

import android.content.Context;
import android.content.SharedPreferences;

public class EmailUtils {
    private static final String PREFS_NAME = "EmailPrefs";
    private static final String PASSWORD_KEY = "EmailPassword";

    public static void saveEmailPassword(Context context, String password) {
        SharedPreferences sharedPreferences = context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
        SharedPreferences.Editor editor = sharedPreferences.edit();
        editor.putString(PASSWORD_KEY, password);
        editor.apply();
    }

    public static String getEmailPassword(Context context) {
        SharedPreferences sharedPreferences = context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
        return sharedPreferences.getString(PASSWORD_KEY, "");
    }
}

String password = "examplePassword";
EmailUtils.saveEmailPassword(context, password);

String savedPassword = EmailUtils.getEmailPassword(context);