BootSelf
kotlin

Retrieve single element

1 role need it, 1 as coreUsually level 3: WorkingLesson available

Where it sits

Learn first

RangesExtension functions

This skill

Retrieve single element

Leads to

The roles below put it to work directly.

Jobs that need it

What level 3 (Working) means

Uses it independently on the job. Level 4 (Strong): handles hard cases, reviews others.

Start learning

Retrieve single element

Operations with collections

about 12 min5 parts

Open the lesson

Find out where you stand

A free check, then a route that starts at your level.

Retrieve single element: common questions

What is Retrieve single element?

Retrieve single element is a skill in kotlin, needed by 1 role on BootSelf.

Which jobs need Retrieve single element?

Android Developer. Most ask for level 3 (Working): uses it independently on the job.

What should I learn before Retrieve single element?

Ranges, Extension functions.

How long does it take to learn Retrieve single element?

The starting lesson, Retrieve single element, takes about 12 minutes. Reaching the level a job asks for takes practice on top: BootSelf measures where you are and plans the rest.

How do I practise Retrieve single element?

Check your readiness for free, then BootSelf builds a route and short daily learning loops: a little theory, checks on what you get wrong, then a small program.