A DESCRIPTION OF THE PROBLEM :
https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/stream/Collectors.html#summingInt(java.util.function.ToIntFunction)
In the description of summingInt method:
"a integer-valued function" should be "an integer-valued function" with "an" instead of "a".
https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/stream/Collectors.html#summingInt(java.util.function.ToIntFunction)
In the description of summingInt method:
"a integer-valued function" should be "an integer-valued function" with "an" instead of "a".