public class MainActivity extends Activity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        SharedPreferences pref=PreferenceManager.getDefaultSharedPreferences(MainActivity.this);

        //方法2：SharedPreferences //pref=getSharedPreferences("mypref",MODE_PRIVATE);

        Editor editor=pref.edit();

        editor.putString("name", "王二");

        editor.putBoolean("default", true);

        editor.putInt("age", 30);

        editor.putLong("time", System.currentTimeMillis());

        editor.commit();//提交

        //System.out.println(pref.getInt("age", 0));

    }

}