JNI allows the use of function libraries made in languages such as C, C++, VB from Java applications. The advantage of JNI is that you don't need to write the calling function definition in Java ...

Now take a look at Listing 3, which shows a sigmoid derivative function in Java. We’ve talked about derivatives conceptually, here’s one in action. Listing 3.

The use of the Java Streams API to find duplicates. The use of the frequency method in Java’s Collections class. Brute-force Java duplicate finder. A brute-force approach to solve this problem ...