Java basic constructs
Lesson 1 - Introduction to the Java language
In this lesson, we'll get acquainted with the Java programming language. We'll go over things like machine code, interpreters, compilers, and VMs.
Lesson 2 - NetBeans IDE and your first console application
In this lesson, we'll install the NetBeans IDE and use it to create a simple console application in Java.
Lesson 3 - Variables, type system and parsing in Java
In this lesson, we'll go over variables and type systems in Java. You'll learn how to parse values from the console and create 4 simple apps.
Exercises for Java lessons 1-3
Solved programmer tasks in Java on variables, type systems, and parsing. The tasks are ordered by difficulty. Solutions are available for download.
Lesson 4 - More on the Java type system: Data types
This lesson is all about the different data types in the Java language. We'll also cover String methods, work with substrings and so on.
Exercises for Java lesson 4
Solved programmer tasks in Java on data types and strings. The tasks are ordered by difficulty. Solutions are available for download.
Lesson 5 - Conditions (branching) in Java
This lesson goes over what branching is in Java, as well as conditional statements and switch constructs.
Exercises for Java lesson 5
Solved programmer tasks in Java on conditions, branching, and switches. The tasks are ordered by difficulty. Solutions are available for download.
Lesson 6 - Loops in Java
This tutorial goes over loops in Java. We'll go over for and while loops, and create simple apps such as a multiplication table, exponents, and so on.
Exercises for Java lesson 6
Solved programmer tasks in Java on loops (mainly the for loop). The tasks are ordered by difficulty. Solutions are available for download.
Lesson 7 - Arrays in Java
In this lesson, you will learn about arrays in Java. We'll go over different declarations, filling, printing and array methods.
Exercises for Java lesson 7
Solved programmer tasks in Java on arrays and the foreach loop. The tasks are ordered by difficulty. Solutions are available for download.
Lesson 8 - Strings in Java - Working with single characters
This lesson will show you how to access single string characters. You'll learn about the ASCII table and create several practical apps.
Exercises for Java lesson 8
Solved programmer tasks in Java on working with single characters topics. The tasks are ordered by difficulty. Solutions are available for download.
Lesson 9 - Strings in Java - Split and join
In this lesson, you'll learn several new string methods and create a Morse alphabet decoder using the split() and join methods.
Exercises for Java lesson 9
Solved programmer tasks in Java on splitting strings and substrings. The tasks are ordered by difficulty. Solutions are available for download.
Lesson 10 - Multidimensional arrays in Java
This tutorial goes over 2d arrays and multidimensional arrays in general. Including shortened initialization, examples, and jagged arrays.
Lesson 11 - Mathematical functions in Java - The Math library
This lesson is all about the Math library, which includes many mathematical functions for Java like rounding, trigonometry, exponents, roots, etc.
Exercises for Java lessons 10-11
Solved programmer tasks in Java on multidimensional arrays and Math. The tasks are ordered by difficulty. Solutions are available for download.