Java Programming

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The live sections, module by module. Open any section to see its lessons.

What is an array?

Sign in14 min

Creating an array

Sign in18 min

Reading and changing array elements

Sign in18 min

Looping through an array

Sign in20 min

The for-each loop

Sign in18 min

Sum, average, largest and search

Sign in25 min

Arrays and methods

Sign in25 min

2D arrays: rows and columns

Sign in25 min

The Arrays class: print, sort and compare

Sign in18 min

Common mistakes and practice

Sign in30 min

What you will learn

Write, run and debug Java programs from scratch: variables, conditions, loops, methods, arrays and strings
Handle errors with exceptions and organise code into packages
Model real things with classes and objects, encapsulation, inheritance, polymorphism and interfaces
Choose and use the right collection (lists, sets, maps, queues) and write type-safe code with generics
Build console mini projects and publish them on GitHub