À propos de ce cours : Build on the software engineering skills you learned in “Java Programming: Solving Problems with Software” by learning new data structures. Use these data structures to build more complex programs that use Java’s object-oriented features. At the end of the course you will write an encryption program and a program to break your encryption algorithm. After completing this course, you will be able to: 1. Read and write data from/to files; 2. Solve problems involving data files; 3. Perform quantitative analyses of data (e.g., finding maximums, minimums, averages); 4. Store and manipulate data in an array or ArrayList; 5. Combine multiple classes to solve larger problems; 6. Use iterables and collections (including maps) in Java.

Les destinataires de ce cours : This course is for anyone who has taken the first two courses in the Java Programming and Software Engineering Fundamentals Specialization, “Programming Foundations with JavaScript, HTML and CSS” and “Java Programming: Solving Problems with Software.” To succeed in this course, before starting you should have a good understanding of the following: variables, conditionals, for and while loops, methods, Strings, and the edu.duke custom libraries.

Créé par : Duke University

Enseigné par : Andrew D. Hilton, Assistant Professor of the Practice
Electrical and Computer Engineering
Enseigné par : Robert Duvall, Lecturer
Computer Science
Enseigné par : Owen Astrachan, Professor of the Practice
Computer Science
Enseigné par : Susan H. Rodger, Professor of the Practice
Computer Science

Informations de base	Cours 2 de 4 dans Object Oriented Programming in Java Specialization
Niveau	Débutant
Engagement	4 weeks of study, 4-8 hours/week
Langue	English, Sous-titres : Korean
Comment réussir	Réussissez tous les devoirs notés pour terminer le cours.
Notes des utilisateurs	4.7 étoiles Note moyenne des utilisateurs 4.7Voir ce que disent les étudiants

Programme de cours

SEMAINE 1

Welcome

Welcome to “Java Programming: Arrays, Lists, and Structured Data”! We are excited that you are starting our course to learn how to write programs in Java, one of the most popular programming languages in the world. In this introductory module, you will hear an overview of this course and be introduced to the supporting resources available.

1 vidéo, 2 lectures

Reading: Programming Resources
Reading: Feedback surveys

Cryptography: Keeping Information Secret

In this module, you will learn about the basics of cryptography, the science of keeping information private and secure. You will learn about simpler cryptographic systems, which were used from the Roman Empire through the early 1900s. You will learn how to implement these ciphers, as well as how to break them. To solve these problems, you will work more with processing Strings, but also learn about arrays—a way to store an indexable sequence of elements. You will be able to: (1) combine Strings using concatenation; (2) build Strings within a Java program using StringBuilder; (3) use arrays to store and manipulate collections of data; (4) refactor your programs for improved organization using object-oriented principles; (5) and practice effective algorithm design.

21 vidéos, 5 lectures, 3 quiz pour s'exercer

Reading: Module Learning Outcomes / Resources
Vidéo: Introduction
Vidéo: Creating and Manipulating Strings
Vidéo: Counting Loops
Vidéo: Character Class
Vidéo: Developing an Algorithm
Vidéo: Translating into Code
Vidéo: Testing and Debugging
Vidéo: Summary
Reading: Programming Exercise: Implementing the Caesar Cipher
Practice Quiz: Implementing the Caesar Cipher
Vidéo: Introduction
Vidéo: Arrays
Vidéo: Random Numbers and Arrays
Vidéo: Counting with Arrays
Vidéo: Developing an Algorithm
Vidéo: Summary
Reading: Programming Exercise: Breaking the Caesar Cipher
Practice Quiz: Breaking the Caesar Cipher
Vidéo: Introduction
Vidéo: Rewriting with Encapsulation
Vidéo: Fields
Vidéo: Visibility
Vidéo: Constructors
Vidéo: Summary
Reading: Programming Exercise: Object Oriented Caesar Cipher
Practice Quiz: Object Oriented Caesar Cipher
Reading: End of Module Survey

Noté: Cryptography

SEMAINE 2

GladLibs: Stories from Templates

After completing this module, you will be able (1) to program a word frequency counter to analyze any input text file, (2) to select and substitute words from a list into a document template using both ArrayList and HashMap, (3) to create new lists to use in templates, (4) to recognize brittle code, and (5) to improve code with flexible, object-oriented design. You will gain these skills in the framework of developing a randomly generated story that we call GladLibs. You may discover that bald lions change peoples’ lives, or that fluffy dinosaurs get things done in a jiffy. We hope you have fun developing your Java skills this week!

13 vidéos, 5 lectures, 2 quiz pour s'exercer

Reading: Module Learning Outcomes / Resources
Vidéo: High-level Design Concepts
Vidéo: ArrayList
Vidéo: ArrayList for Unique Words
Vidéo: ArrayList Advantages and Issues
Vidéo: Summary
Reading: Programming Exercise: Telling a Random Story
Practice Quiz: Telling a Random Story
Vidéo: Introduction
Vidéo: Brittle Code
Vidéo: Adding New Labels
Reading: Programming Exercise: Using GladLibs
Vidéo: HashMap
Vidéo: HashMap for Unique Words
Vidéo: HashMap for Flexible Design
Vidéo: Summary
Reading: Programming Exercise: Improving GladLibs
Practice Quiz: Using and Improving GladLibs
Reading: End of Module Survey

Noté: GladLibs

SEMAINE 3

Web Server Logs: From Logs to Visits

In this module, you will learn about how web server logs store information about visitors to a website, and you will write programs to access information like user IP address, date and time of access, and more. Using Java programs you write in this module, you will be able (1) to read information from a web server log, (2) to count the number of unique visitors to your website, and (3) to count the number of times each visitor uses your website.

15 vidéos, 5 lectures, 3 quiz pour s'exercer

Reading: Module Learning Outcomes / Resources
Vidéo: Understanding Log Files
Vidéo: LogEntry Class with toString
Vidéo: Parsing Log Files
Vidéo: Summary
Reading: Programming Exercise: Reading Log Files
Practice Quiz: Reading Log Files
Vidéo: Introduction
Vidéo: Developing an Algorithm
Vidéo: Translating to Code
Vidéo: Equality
Vidéo: Summary
Reading: Programming Exercise: Finding Unique IP Addresses
Practice Quiz: Finding Unique IP Addresses
Vidéo: Introduction
Vidéo: Developing an Algorithm
Vidéo: Translating to Code
Vidéo: HashMap for Unique IPs
Vidéo: Summary
Reading: Programming Exercise: Counting Website Visits
Practice Quiz: Counting Website Visits
Reading: End of Module Survey

Noté: Web Server Logs

SEMAINE 4

MiniProject: Vigenère Cipher

In this module, you will develop a program to break the Vigenère Cipher, a more complex version of the Caesar Cipher. You will improve your program in three stages: first decrypting messages where you know the language and key length, then adding the capability to handle messages with unknown key length, then extending the program to handle messages in a range of possible languages. Through this project, you will be able (1) to effectively use HashSet and HashMap, (2) to expand an algorithm from solving a simpler problem to handle broader, more complex problems, and (3) to design and modify program code involving a more complex collection of classes, methods, and data.

4 vidéos, 6 lectures, 2 quiz pour s'exercer

Reading: Module Resources
Vidéo: Known Language and Key Length
Reading: Programming Exercise: Known Language and Key Length
Practice Quiz: Known Language and Key Length
Vidéo: Unknown Key Length
Reading: Programming Exercise: Unknown Key Length
Practice Quiz: Unknown Key Length
Vidéo: Unknown Language
Reading: Programming Exercise: Unknown Language, Unknown Key Length
Reading: Extend Your Program
Reading: End of Module Survey

Noté: Breaking the Vigenère Cipher

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Comment cela fonctionne

Coursework

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Créateurs

Duke University

Duke University has about 13,000 undergraduate and graduate students and a world-class faculty helping to expand the frontiers of knowledge. The university has a strong commitment to applying knowledge in service to society, both near its North Carolina campus and around the world.

Tarification

	Acheter le cours
Accéder au contenu du cours	Disponible
Accéder au contenu noté	Disponible
Recevoir une Note Finale	Disponible
Obtenir un Certificat de Cours partageable	Disponible

Notation et examens

Note moyenne 4.7 sur 5 sur 1,016 notes

I found some of the questions quite challenging as opposed to the programming concepts. The questions specifically in the 4th week Quiz need to be reworded as they are a confusing bunch. But thanks for making a great content and giving me the right amount of information and domain knowledge to understand some important Java concepts.

This course taught me many useful data manipulation skills in java.

As someone who had slight knowledge of Java and who is looking to study computer science, this course filled in the gap that IB Computer Science 1st Year couldn't do - I actually got to code and apply concepts like writing private vs public methods or using getters or for loops. I also had the luxury of having a free summer to complete this and with days of work ranging from 3-6 hours, I managed to finish the course in 26 days. I believe it relies a bit too much on its previous courses at times and the time needed to complete assignments is very off but this is a great way to actually see a project through and push yourself. Thank you Duke!