Sleyter's Blog

Sleyter Sandoval

1 follower

I've been a software developer since 2015. I enjoy when I read about technology. I prefer to work with java and spring in backend and angular in frontend. I'm Peruvian.

Functional Interfaces in Java

Dec 29, 20223 min read

Functional Interface(FI) refers to a special kind of interface, it's an interface with only one abstract method, that is, FI can have many other...

Optional in java

Oct 13, 20213 min read

Sometimes we must handle null values in java and I know that's very problematical because it can throw the most famous exception(NullPointerException...