I'm a beginner on android.Right now I'm developing a own application for Signature Capture on android. I already google several time. I found somethings.Most开发者_JAVA技巧 of the android developer recommend to use TouchPaint.java and FingerPaint.java. So I start to implement with TouchPaint.java then I followed this Video Tutorials from YouTube. But I got the following errors

onTouchEvent on TouchPaint.java.

event.getHistoricalTouchMajor(j, i)

The method getHistoricalTouchMajor(int, int) is undefined for the type MotionEvent.

event.getTouchMajor(j)

The method getTouchMajor(int) is undefined for the type MotionEvent.

Please help me I've no idea how to solve those errors.

I think the Api level is too low so raise it to API level 9. API 9 is Android 2.3 so you won't be able to install this on 2.1 and 2.2 devices which is the majority of the Android install base.

Further more detail ::

Just as @Dk.nik mentioned, it's the problem of API level. So you might want to reconfig your Project to match.
On the menu Project->Properties, select Android from treeview, on the right pane, Android Build Target, select the correct the API level.