Java 8 Stream – Convert List of List Strings to List Strings
As title, we can use flatMap to convert it. Similar to convert 2D array to 1D array using Stream.flatMap.
How to print an Array in Java
In this article, we will show you a few ways to print a Java Array. We can use JDK 1.5 Arrays.toString to print a simple array and Arrays.deepToString for 2d…
Java 8 flatMap example
This article explains the Java 8 Stream.flatMap and how to use it. In Java 8, we can use the flatMap to convert the above 2 levels Stream into one Stream…