이런형식의 문자열을 잘라서 .으로 구분해서 자르는건데요

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public class StringDelActivity extends Activity {
 String[] result = null;
 Button btn;

 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);
  btn = (Button) findViewById(R.id.button);
  String deleteString = "안녕하세요. 저는 배가 고프지 않습니다.";
  result = deleteString.split(".");
  showLength();

 }
 public void showLength()
 {
  Toast.makeText(getApplicationContext(), result.length,
    Toast.LENGTH_SHORT).show();
 }

}

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오류 로그입니당

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03-12 09:58:49.980: E/AndroidRuntime(8395): FATAL EXCEPTION: main
03-12 09:58:49.980: E/AndroidRuntime(8395): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.anroid/com.anroid.StringDelActivity}: android.content.res.Resources$NotFoundException: String resource ID #0x0
03-12 09:58:49.980: E/AndroidRuntime(8395):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)
03-12 09:58:49.980: E/AndroidRuntime(8395):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
03-12 09:58:49.980: E/AndroidRuntime(8395):  at android.app.ActivityThread.access$1500(ActivityThread.java:117)
03-12 09:58:49.980: E/AndroidRuntime(8395):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
03-12 09:58:49.980: E/AndroidRuntime(8395):  at android.os.Handler.dispatchMessage(Handler.java:99)
03-12 09:58:49.980: E/AndroidRuntime(8395):  at android.os.Looper.loop(Looper.java:130)
03-12 09:58:49.980: E/AndroidRuntime(8395):  at android.app.ActivityThread.main(ActivityThread.java:3687)
03-12 09:58:49.980: E/AndroidRuntime(8395):  at java.lang.reflect.Method.invokeNative(Native Method)
03-12 09:58:49.980: E/AndroidRuntime(8395):  at java.lang.reflect.Method.invoke(Method.java:507)
03-12 09:58:49.980: E/AndroidRuntime(8395):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:847)
03-12 09:58:49.980: E/AndroidRuntime(8395):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:605)
03-12 09:58:49.980: E/AndroidRuntime(8395):  at dalvik.system.NativeStart.main(Native Method)
03-12 09:58:49.980: E/AndroidRuntime(8395): Caused by: android.content.res.Resources$NotFoundException: String resource ID #0x0
03-12 09:58:49.980: E/AndroidRuntime(8395):  at android.content.res.Resources.getText(Resources.java:201)
03-12 09:58:49.980: E/AndroidRuntime(8395):  at android.widget.Toast.makeText(Toast.java:266)
03-12 09:58:49.980: E/AndroidRuntime(8395):  at com.anroid.StringDelActivity.showLength(StringDelActivity.java:28)
03-12 09:58:49.980: E/AndroidRuntime(8395):  at com.anroid.StringDelActivity.onCreate(StringDelActivity.java:21)
03-12 09:58:49.980: E/AndroidRuntime(8395):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1050)
03-12 09:58:49.980: E/AndroidRuntime(8395):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1615)
03-12 09:58:49.980: E/AndroidRuntime(8395):  ... 11 more

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자르고나서 result 배열의 length에 관한 연산만 하면 오류를 뱉어내면서 꺼져 버리네요-_-

해결책아시는분 있으신지 도움 부탁들려요~ 도와주세요.ㅠㅠ