Design Patterns and Best Practices in Java

The distinct operator

This removes distinct items emitted by an Observable using the following methods:

• distinct: Emits only distinct elements
• distinctUntilChanged: Emits only elements that are distinct from their immediate predecessors

In the following code, we will see how to use the distinct method in order to remove duplicates from a given sequence:

We can see that the duplicate aaa string has been removed from the output.