Object-Oriented Programming with Java Course

What you will learn in 11 lessons

1. 1

   First Java Programs

   Start here

   Write, compile and run Java programs that print output, read input and calculate with variables of primitive types.

   5 learning goals

   What you will learn

   1. 1.Write, compile and run a Java program
   2. 2.Store data in variables of the right type
   3. 3.Calculate with arithmetic expressions
   4. 4.Convert values between types
   5. 5.Read input and build complete programs
2. 2

   Conditions and Loops in Java

   Control program flow with if statements, switch and while and for loops, using Boolean logic to express conditions.

   4 learning goals

   What you will learn

   1. 1.Write conditions with Boolean logic
   2. 2.Choose between paths with if and switch
   3. 3.Repeat statements with loops
   4. 4.Solve problems with common loop patterns
3. 3

   Java Methods

   Write static methods with parameters and return values, and divide a program into small methods that each do one thing.

   5 learning goals

   What you will learn

   1. 1.Write and call your own methods
   2. 2.Return results from methods
   3. 3.Follow variables and calls through a program
   4. 4.Overload methods
   5. 5.Divide a program into methods
4. 4

   Java Arrays and ArrayLists

   Store collections in ArrayLists and arrays, process them with loops and manipulate text with String methods.

   5 learning goals

   What you will learn

   1. 1.Store and manage data in an ArrayList
   2. 2.Store fixed-size data in arrays
   3. 3.Process lists and arrays with loops
   4. 4.Work with text using String methods
   5. 5.Compare strings correctly and build text efficiently
5. 5

   Java Classes and Objects

   Define classes with fields, constructors and methods, create objects from them and protect object state through encapsulation.

   5 learning goals

   What you will learn

   1. 1.Understand classes and objects
   2. 2.Give objects state with fields and constructors
   3. 3.Give objects behavior with instance methods
   4. 4.Protect object state with encapsulation
   5. 5.Describe objects and build complete classes
6. 6

   Java Objects and References

   Explain the difference between primitive and reference variables, pass objects to methods, build objects from other objects and compare them with equals and hashCode.

   5 learning goals

   What you will learn

   1. 1.Tell primitive values and object references apart
   2. 2.Pass objects into methods and return them
   3. 3.Build objects from other objects
   4. 4.Compare objects for equality
   5. 5.Separate the user interface from the program logic
7. 7

   HashMaps and Collections in Java

   Store and group data by key with HashMap, choose between Java collection types and sort collections with Comparable.

   6 learning goals

   What you will learn

   1. 1.Store and look up data by key with HashMap
   2. 2.Count, group and index data with maps
   3. 3.Keep unique values with sets
   4. 4.Program with the List, Set and Map interfaces
   5. 5.Sort collections with Comparable
   6. 6.Choose the right collection for a task
8. 8

   Java Inheritance and Polymorphism

   Reuse and extend code with inheritance and abstract classes, define contracts with interfaces and use polymorphism to write flexible programs.

   5 learning goals

   What you will learn

   1. 1.Extend classes with inheritance
   2. 2.Override methods and use the Object class
   3. 3.Define contracts with abstract classes and interfaces
   4. 4.Write flexible programs with polymorphism
   5. 5.Model fixed values and data with enums and records
9. 9

   Exceptions and Files in Java

   Handle errors with checked and unchecked exceptions, and read and write files safely with try-with-resources.

   5 learning goals

   What you will learn

   1. 1.Understand what exceptions are and how Java classifies them
   2. 2.Handle exceptions with try, catch and finally
   3. 3.Throw exceptions and design your own
   4. 4.Locate files and close resources safely
   5. 5.Read and write text files
10. 10

    Java Packages

    Organize a larger Java program into packages, sketch its structure with UML class diagrams and verify it with JUnit tests.

    5 learning goals

    What you will learn

    1. 1.Organize a Java program into packages
    2. 2.Sketch program structure with UML class diagrams
    3. 3.Structure a program in layers
    4. 4.Verify code with JUnit tests
    5. 5.Build and test projects with Maven or Gradle
11. 11

    Generics, Lambdas and Streams in Java

    Write generic classes and methods, pass behavior with lambda expressions and process collections with the Stream API.

    5 learning goals

    What you will learn

    1. 1.Write generic classes and methods
    2. 2.Pass behavior with lambda expressions
    3. 3.Order objects with Comparator
    4. 4.Process collections with streams
    5. 5.Collect and apply stream results