I should have built this locally

Author: huydhn

examples/demo-apps/android/LlamaDemo/app/src/main/java/com/example/executorchllamademo/LlmBenchmarkRunner.java

@@ -18,6 +18,7 @@
 import java.io.IOException;
 import java.io.File;
 import com.google.gson.Gson;
+import java.util.Arrays;
 
 public class LlmBenchmarkRunner extends Activity implements ModelRunnerCallback {
   ModelRunner mModelRunner;