add demo

Author: Carson-Ho

app/src/main/java/scut/carson_ho/rxjava_operators/MainActivity.java

@@ -31,15 +31,15 @@ public void subscribe(ObservableEmitter<Integer> e) throws Exception {
 
                 e.onNext(2);
 
-                Thread.sleep(1500);
+                Thread.sleep(500);
 
                 e.onNext(3);
-                Thread.sleep(1500);
+                Thread.sleep(4500);
 
                 e.onNext(4);
-                Thread.sleep(500);
+                Thread.sleep(1500);
                 e.onNext(5);
-                Thread.sleep(500);
+                Thread.sleep(1500);
                 e.onNext(6);
                 Thread.sleep(1500);