diff --git a/app/src/main/java/org/ntlab/developrx/JavaMainActivity.java b/app/src/main/java/org/ntlab/developrx/JavaMainActivity.java
index e775591..37e4b67 100644
--- a/app/src/main/java/org/ntlab/developrx/JavaMainActivity.java
+++ b/app/src/main/java/org/ntlab/developrx/JavaMainActivity.java
@@ -15,9 +15,8 @@
         setContentView(R.layout.activity_main_java);
 
         findViewById(R.id.flowable_btn).setOnClickListener(view -> rxProcess.flowableReactiveStreams());
-
         findViewById(R.id.observable_btn).setOnClickListener(view -> rxProcess.observable());
-
         findViewById(R.id.just_btn).setOnClickListener(view -> rxProcess.just());
+        findViewById(R.id.fromarray_btn).setOnClickListener(view -> rxProcess.fromArray());
     }
 }