fixed typo

Author: PaddyKe

contents/approximate_counting/approximate_counting.md

@@ -366,8 +366,8 @@ As we do not have any objects to count, we will instead simulate the counting wi
 [import, lang:"cpp"](code/c++/approximate_counting.cpp)
 {% sample lang="python" %}
 [import, lang:"python"](code/python/approximate_counting.py)
-{% sample lang:"java" %}
-[import, lang="java"](code/java/ApproximateCounting.java)
+{% sample lang="java" %}
+[import, lang:"java"](code/java/ApproximateCounting.java)
 {% endmethod %}
 
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