In this example we will see how to sort files in folders. We will provide two folders one for input and one for output. Then we will filter only specific files (.png and .jpg) from input folder with method listFiles. After that we will loop over the files and read the date from each file. … Read more
In this example we can see record Person and we use stream’s sorted(Comparator<? super T> comparator) method to sort the List of people by their age. So sorted(Comparator<? super T> comparator) accept as parameter Comparator. For this reason we have to create Comparator and we sort inside by age. The documentation for sorted(Comparator<? super T> comparator) state: Returns … Read more
In this example, we can see the class Person and we use stream’s sorted() method to sort the list of people by their age. So in order for sorted() to work, it needs to have a natural order. For this reason, we have to implement the Comparable interface for the class which needs to be … Read more
