刚入门android 在配 开发环境的过程中调试出现的问题？

[skyming]

问题 1：
Description Resource Path Location Type
The method onAccuracyChanged(Sensor, int) of type AccelerometerPlayActivity.SimulationView must override a superclass method AccelerometerPlayActivity.java /AccelerometerPlay/src/com/example/android/accelerometerplay line 457 Java Problem
问题 2：
Description Resource Path Location Type
The method onSensorChanged(SensorEvent) of type AccelerometerPlayActivity.SimulationView must override a superclass method AccelerometerPlayActivity.java /AccelerometerPlay/src/com/example/android/accelerometerplay line 378 Java Problem

高手请进 ，小弟感激不尽