Syntax for Java 8 lambda expressions...

Finding the distinct elements of a Java stream is easy. We can use the `Stream#distinct` method...

Effectively final variable is a variable that has not been explicitly marked as final, but it doesn't change its value (basically, an implicit constant). Effectively final variables can be referenced in lambdas, without the need to explicitly mark them as "final"...

Let's create and run some `Runnable`! With Java 8, instead of using anonymous classes, we can use lambda expressions. The syntax `(params) -> statement` can be used to create an instance of Runnable by implementing its `run` method. This is possible only for interfaces that have only one abstract ...

Starting from Java 8, a method which is defined in an interface can have a default implementation: For example...

Let's filter a list of strings using Java 8 streams...

Let's map a list of words using Java 8 streams...

With Java 8 we can use a lambda expression to implement a `Comparator` for sorting a collection...

Java 8 streams provide an easy way to calculate basic statistics on the values of a stream of numbers. We can use the `summaryStatistics` method to get the basic statistics: minimum, maximum, count, sum and average...