BootSelf
Check my readiness
kotlin

Packages and imports

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

Where it sits

Learn first

Declaring classes

This skill

Packages and imports

Leads to

Visibility for classes, packages, and modules

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

Packages and imports

Object-oriented programming usage

about 14 min9 parts

Open the lesson

Find out where you stand

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

Check my readiness

Learned alongside it

Abstract classesAdditional librariesAggregate operations on collectionsAggregate operations on collections: part 2AndroidAndroid CoreAndroid JetpackAndroid studio basics

Packages and imports: common questions

What is Packages and imports?

Packages and imports is a skill in kotlin, needed by 1 role on BootSelf.

Which jobs need Packages and imports?

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

What should I learn before Packages and imports?

Declaring classes.

How long does it take to learn Packages and imports?

The starting lesson, Packages and imports, takes about 14 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 Packages and imports?

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.