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@sleyter

Sleyter Sandoval

@sleyter·Lima, Peru·Joined October 2021

Java Developer

About

I'm peruvian. I'm OCP Java 11 certified.

Available for

I'm available to talk about web technologies. My experience is mainly developing web app with angular and java.

Sleyter Sandoval's blogs

Sleyter's Blogsleyter.hashnode.dev2 posts

Articles Comments

Functional Interfaces in Java

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 implemented methods, but only one abstract method. package com.sosv.functional.generic; public interface...

Dec 29, 2022 · 3 min readsleyter.hashnode.dev

Optional in java

Sometimes we must handle null values in java and I know that's very problematical because it can throw the most famous exception(NullPointerException - NPE) and QA generate a superbug in Jira. jejeje So, what is optional? An optional is a container o...

2S

M

Oct 13, 2021 · 3 min readsleyter.hashnode.dev

About

I'm peruvian. I'm OCP Java 11 certified.

Available for

I'm available to talk about web technologies. My experience is mainly developing web app with angular and java.

Sleyter Sandoval's blogs

Sleyter's Blogsleyter.hashnode.dev2 posts

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@sleyter

Sleyter Sandoval

@sleyter·Lima, Peru·Joined October 2021

Java Developer

About

I'm peruvian. I'm OCP Java 11 certified.

Available for

I'm available to talk about web technologies. My experience is mainly developing web app with angular and java.

Sleyter Sandoval's blogs

Sleyter's Blogsleyter.hashnode.dev2 posts

Articles Comments

Functional Interfaces in Java

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 implemented methods, but only one abstract method. package com.sosv.functional.generic; public interface...

Dec 29, 2022 · 3 min readsleyter.hashnode.dev

Optional in java

Sometimes we must handle null values in java and I know that's very problematical because it can throw the most famous exception(NullPointerException - NPE) and QA generate a superbug in Jira. jejeje So, what is optional? An optional is a container o...

2S

M

Oct 13, 2021 · 3 min readsleyter.hashnode.dev

About

I'm peruvian. I'm OCP Java 11 certified.

Available for

I'm available to talk about web technologies. My experience is mainly developing web app with angular and java.

Sleyter Sandoval's blogs

Sleyter's Blogsleyter.hashnode.dev2 posts