Basics of Java (III).

Fig. Code execution in VS Code, of Java app in folder 'course_java_iii_challenge_app_shopping'.

Final delivery of the 3rd course: 'Java: trabajar con listas y colecciones de datos', from module (a.k.a. 'formación' in spanish) 'Java Orientado a Objetos G9 - ONE', of Alura LATAM. Part of ORACLE Next Education (ONE) education program, in LATAM.

This final delivery consists of 2 projects, each one in it's own folder (using folders structure of Maven's java build automation tool):

• Course exercise; in folder: course_java_iii.
• Course challenge of a shopping app; in folder: course_java_iii_challenge_app_shopping.

Note

This README is mainly written in english (en), but it might have some sections in spanish (sp), since course content is in spanish.

ℹ About.

The course covered topics such as:

• Working with lists in Java 17: class ArrayList<> and interface List<>.
• Using methods from class ArrayList<>, to add items, and get the array's size.
• Understanding different types of lists and uses cases; e.g. ArrayList, LinkedList, Stack, and Vector.
• Using var as a short kewyword for declaring attributes and variables.
• Getting to know 'Javadocs'; i.e. documentation specific for each Java version, referring methods, classes, interfaces, etc. E.g. Javadoc 17: 'https://docs.oracle.com/en/java/javase/17/docs/api/index.html'.
• Getting to know superclass Object and its .toString() method.
• Implementing custom constructors for classes: 'predetermined' (without parameters), and additionals.
• Taking advantage of 'Polymorphism' to store instances of a superclass, that later can be converted to their subclasses, depending on the use case.
• Using for to access instances stored in a list.
• Learning to sort lists using 2 approaches:
  1. Using class Collections, and also implementing interface Comparable in the class that's used to compare instances.
  2. Using class Comparator, for 'on-the-fly' comparissons, due to not requiring to implement the interface Comparable, but using 'Method Reference', a reduced form of a lambda expression.

🥇 Course Certificate of Completion.

Available at 'https://app.aluracursos.com/certificate/cf0cfce1-6eb1-4e00-947f-ac6b0dc52532'.

• Estimated workload: 8h.
• Activities: 48.
• Topics:
  1. 'Colección de peliculas'.
  2. 'Construyendo objetos'.
  3. 'Lista de objetos distintos'.
  4. 'Ordenando datos'.
  5. 'Consolidando conocimientos'.

🔗 Links to program resources.

PROGRAM STRUCTURE.

• [Course] 'Java: trabajar con listas y colecciones de datos': 'https://app.aluracursos.com/course/java-trabajar-listas-colecciones-datos'.
• [Module] 'Java Orientado a Objetos G9 - ONE': 'https://app.aluracursos.com/formacion-java-grupo9-one/'.
• ORACLE Next Education (ONE) education program, in LATAM: 'https://www.oracle.com/co/education/oracle-next-education/'.
• Alura LATAM education platform: 'https://www.aluracursos.com/'.

COURSE RESOURCES.

• GitHub's project repository: 'https://github.com/alura-es-cursos/screen-match-3'.
  • Branch for course exercises: Aula0 to Aula4. Ref.: 'https://github.com/alura-es-cursos/screen-match-3/tree/Aula0'.
  • Repo for course challenge. Ref.: 'https://github.com/alura-cursos/2024-java3-desafio/tree/master'.

🐾 Notes About Project.

Note

This section is only for reference, for documentation purposes in case of re-visiting course notes.

No aditional notes.

🤝 Contributors.

Made with contrib.rocks.

📜 Authors.

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