Mostrar tabla en AutoCompleteTextView

[ci2000]

javih, gracias por responder.

La consulta no devuelve datos.

En LogCat me muestra:

05-24 12:38:13.244: D/dalvikvm(336): GC_EXTERNAL_ALLOC freed 65K, 52% free 2595K/5379K, external 2032K/2137K, paused 46ms
05-24 12:38:16.635: W/KeyCharacterMap(336): No keyboard for id 0
05-24 12:38:16.645: W/KeyCharacterMap(336): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
05-24 12:51:33.925: D/dalvikvm(373): GC_EXTERNAL_ALLOC freed 66K, 52% free 2595K/5379K, external 2032K/2137K, paused 45ms
05-24 12:51:38.155: W/KeyCharacterMap(373): No keyboard for id 0
05-24 12:51:38.155: W/KeyCharacterMap(373): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
05-24 12:51:42.504: D/AndroidRuntime(373): Shutting down VM
05-24 12:51:42.504: W/dalvikvm(373): threadid=1: thread exiting with uncaught exception (group=0x40015560)
05-24 12:51:42.514: E/AndroidRuntime(373): FATAL EXCEPTION: main
05-24 12:51:42.514: E/AndroidRuntime(373): java.lang.RuntimeException: Unable to start activity ComponentInfo{android.acopio/android.acopio.d_matricula}: java.lang.NullPointerException
05-24 12:51:42.514: E/AndroidRuntime(373): at android.app.ActivityThread.performLaunchActivity(A ctivityThread.java:1647)
05-24 12:51:42.514: E/AndroidRuntime(373): at android.app.ActivityThread.handleLaunchActivity(Ac tivityThread.java:1663)
05-24 12:51:42.514: E/AndroidRuntime(373): at android.app.ActivityThread.access$1500(ActivityThr ead.java:117)
05-24 12:51:42.514: E/AndroidRuntime(373): at android.app.ActivityThread$H.handleMessage(Activit yThread.java:931)
05-24 12:51:42.514: E/AndroidRuntime(373): at android.os.Handler.dispatchMessage(Handler.java:99 )
05-24 12:51:42.514: E/AndroidRuntime(373): at android.os.Looper.loop(Looper.java:123)
05-24 12:51:42.514: E/AndroidRuntime(373): at android.app.ActivityThread.main(ActivityThread.jav a:3683)
05-24 12:51:42.514: E/AndroidRuntime(373): at java.lang.reflect.Method.invokeNative(Native Method)
05-24 12:51:42.514: E/AndroidRuntime(373): at java.lang.reflect.Method.invoke(Method.java:507)
05-24 12:51:42.514: E/AndroidRuntime(373): at com.android.internal.os.ZygoteInit$MethodAndArgsCa ller.run(ZygoteInit.java:839)
05-24 12:51:42.514: E/AndroidRuntime(373): at com.android.internal.os.ZygoteInit.main(ZygoteInit .java:597)
05-24 12:51:42.514: E/AndroidRuntime(373): at dalvik.system.NativeStart.main(Native Method)
05-24 12:51:42.514: E/AndroidRuntime(373): Caused by: java.lang.NullPointerException
05-24 12:51:42.514: E/AndroidRuntime(373): at android.acopio.d_matricula.onCreate(d_matricula.ja va:72)
05-24 12:51:42.514: E/AndroidRuntime(373): at android.app.Instrumentation.callActivityOnCreate(I nstrumentation.java:1047)
05-24 12:51:42.514: E/AndroidRuntime(373): at android.app.ActivityThread.performLaunchActivity(A ctivityThread.java:1611)
05-24 12:51:42.514: E/AndroidRuntime(373): ... 11 more

Saludos