Suppose we have a List of strings and want to group them by length.
We can use
Collectors.groupingBy() for this task.
Today we will see how using java 8 stream flatmap method we can wind all the pairs from two Lists.
Let’s see how we can get all the unique characters from List of Strings.
Let’s see how we can remove duplicate elements from array using.
Let’s see how we can paralellize java application. Suppose we have asked to develop application where given the libraries list we need to calculate the number of books in each library. Suppose calculation is an expensive operation. The first thing that comes to our mind is to do this by streams.