We may earn an affiliate commission when you visit our partners.
David Dalsveen
In this project you will read weather data from a file and populate a Java ArrayList with the file data. The data is then uniquified in a Set data structure and stored in a HashMap for accessing data by year.
Read more
In this project you will read weather data from a file and populate a Java ArrayList with the file data. The data is then uniquified in a Set data structure and stored in a HashMap for accessing data by year.
Read more
In this project you will read weather data from a file and populate a Java ArrayList with the file data. The data is then uniquified in a Set data structure and stored in a HashMap for accessing data by year.
Java's collections framework contains data structures that are built for efficiency. They are used to store and retrieve data in various formats. A list such as an ArrayList can be used in place of an array to contain data where the size cannot be determined ahead of time. A LinkeList is like an ArrayList, except elements can be more quickly added and deleted from it, since no shifting needs to occur. A Hashmap is used to quickly look up a value based on a key rather than a numerical index, for example, to look up a phone number based on a key containing a person's name. A Set may be used to remove duplicates from a list, simply by assigning the data to it.
Note: This course works best for learners who are based in the North America region. We’re currently working on providing the same experience in other regions.
Register for this course and see more details by visiting:
OpenCourser.com/course/9949wy/java
Two deals to help you save
Save money when you learn. Here are two deals and offers that may be relevant to this course.
All coupon codes, vouchers, and discounts are applied automatically unless otherwise noted.
Valid until July 14
Coursera Plus Annual
Work toward what's next for your career with access to 10,000+ programs. Discover emerging skills and save.
Up to
40%
off
Get offer
Valid until August 30
Google AI App Builder
Learn how to use Gemini API and API Studio with a three-course series from Google DeepMind
Take
100%
off
Get offer
What's inside
Syllabus
Traffic lights
Traffic lights
Read about what's good
what should give you pause and
possible dealbreakers
Builds a strong foundation for beginners and helps them develop Java programming skills
Helps learners understand and implement Java data structures in their projects
Utilizes efficient data structures from Java's collections framework, making it relevant to industry practices
Involves working with real-world data to enhance practical knowledge
Requires learners to engage actively through project implementation
Availability may vary depending on the region, which could be a limitation for some learners
Save this course
Create your own learning path.
Save this course to your list so you can find it easily later.
Save
Save
Reviews summary
Practical introduction to java data structures
According to students, this course offers a largely positive experience, particularly praised for its clear and concise explanations of Java's built-in data structures like ArrayLists and HashMaps. Learners highlight the hands-on project involving weather data as a practical and engaging component that effectively solidifies understanding and demonstrates real-world application. While it serves as an excellent foundation for beginners or those new to Java collections, some note it may be too basic or lack depth for more intermediate or advanced programmers seeking complex topics or performance considerations.
Serves as a strong introductory course for new learners.
"Highly recommend for beginners to intermediate learners."
"I found this course a solid start for Java collections."
"It's a good starting point, but don't expect to become an expert."
"This course helped me bridge the gap in understanding the collections framework."
Concepts are explained clearly and concisely for easy understanding.
"This course was a fantastic introduction to Java data structures. The explanations were clear, especially for ArrayLists and HashMaps."
"The instructor explained everything clearly and concisely."
"The examples were clear, and the project was well-structured."
"The instructor made complex topics easy to digest."
The hands-on project is highly beneficial for applying concepts.
"The project on weather data was a nice touch, demonstrating real-world application."
"The hands-on approach really made a difference, and I feel confident applying these concepts now."
"The weather data project was brilliant for a practical application. The instructor made complex topics easy to digest."
"I found the project practical and helpful for solidifying my understanding."
Explanations for LinkedList could be clearer or more detailed.
"I found the explanations for LinkedList a bit confusing and the project could have had more depth."
"I wish there were more challenging exercises, and some parts felt rushed."
"I needed to look up external resources for more clarity on some topics."
May lack depth for experienced programmers seeking advanced topics.
"The course is very basic. If you already know some Java and data structures, this might be too simple."
"The project was too easy and didn't challenge me much. I was hoping for more advanced topics or performance considerations."
"For more advanced learners, it might feel a bit slow."
"I needed to look up external resources for more clarity on some topics."
Activities
Be better prepared
before
your course. Deepen your understanding
during
and
after
it. Supplement your coursework and achieve mastery of the topics covered
in Java Built in Data Structures with these
activities:
Organize and Review Course Materials
Show steps
Build a strong foundation by systematically organizing and reviewing the course materials, ensuring that you have a comprehensive understanding of the key concepts and their interconnections.
Show steps
-
Download and organize lecture notes, slides, and assignments.
-
Review the materials regularly, making notes and highlighting important points.
-
Create a study guide or summary document to consolidate your understanding.
Read "Java Programming: A Comprehensive Introduction"
Show steps
Review the fundamental concepts of Java programming, including variables, data types, operators, and control flow, to build a strong foundation for this course.
View
Java: A Beginner's Guide, Ninth Edition
on Amazon
Show steps
-
Read the book's first three chapters to get an overview of Java.
-
Complete the practice exercises at the end of each section.
-
Create a simple Java program that demonstrates the concepts covered in the book.
Follow the Java Tutorial Trail
Show steps
Complement your understanding of Java data structures by following the official tutorial trail to gain a more comprehensive grasp of the subject.
Browse courses on
Java Basics
Show steps
-
Visit the Java Tutorial Trail website.
-
Select the "Collections Framework" trail.
-
Follow the tutorials in order, completing the exercises and examples.
Three other activities
Expand to see all activities and additional details
Show all six activities
Solve LeetCode Problems
Show steps
Sharpen your problem-solving skills by tackling LeetCode problems related to data structures and algorithms, enhancing your understanding of how to manipulate and utilize these concepts.
Browse courses on
Data Structures
Show steps
-
Create a LeetCode account.
-
Start with the "Easy" problems.
-
Read the problem description carefully and analyze the input and output.
-
Come up with a solution using Java data structures and algorithms.
-
Submit your solution and review the feedback.
Participate in Java Coding Challenges
Show steps
Test your skills and gain valuable experience by participating in Java coding challenges, where you can compete with other participants to solve real-world programming problems.
Browse courses on
Data Structures
Show steps
-
Find Java coding challenges online (e.g., HackerRank, CodeChef, LeetCode).
-
Choose a challenge that matches your skill level.
-
Study the problem statement carefully.
-
Develop a solution using Java data structures and algorithms.
-
Submit your solution and compare your performance with others.
Contribute to Open-Source Java Projects
Show steps
Dive deeper into Java development by contributing to open-source projects, where you can collaborate with other developers and gain exposure to larger codebases.
Browse courses on
Open-Source
Show steps
-
Find open-source Java projects on GitHub or other platforms.
-
Identify areas where you can contribute your skills.
-
Fork the project and create a branch for your changes.
-
Make your changes and test them thoroughly.
-
Create a pull request to merge your changes back into the main project.
Organize and Review Course Materials
Show steps
Build a strong foundation by systematically organizing and reviewing the course materials, ensuring that you have a comprehensive understanding of the key concepts and their interconnections.
Show steps
Show steps
Show steps
- Download and organize lecture notes, slides, and assignments.
- Review the materials regularly, making notes and highlighting important points.
- Create a study guide or summary document to consolidate your understanding.
Read "Java Programming: A Comprehensive Introduction"
Show steps
Review the fundamental concepts of Java programming, including variables, data types, operators, and control flow, to build a strong foundation for this course.
View
Java: A Beginner's Guide, Ninth Edition
on Amazon
Show steps
Show steps
Show steps
- Read the book's first three chapters to get an overview of Java.
- Complete the practice exercises at the end of each section.
- Create a simple Java program that demonstrates the concepts covered in the book.
Follow the Java Tutorial Trail
Show steps
Complement your understanding of Java data structures by following the official tutorial trail to gain a more comprehensive grasp of the subject.
Browse courses on
Java Basics
Show steps
Show steps
Show steps
- Visit the Java Tutorial Trail website.
- Select the "Collections Framework" trail.
- Follow the tutorials in order, completing the exercises and examples.
Three other activities
Expand to see all activities and additional details
Show all six activities
Solve LeetCode Problems
Show steps
Sharpen your problem-solving skills by tackling LeetCode problems related to data structures and algorithms, enhancing your understanding of how to manipulate and utilize these concepts.
Browse courses on
Data Structures
Show steps
Show steps
Show steps
- Create a LeetCode account.
- Start with the "Easy" problems.
- Read the problem description carefully and analyze the input and output.
- Come up with a solution using Java data structures and algorithms.
- Submit your solution and review the feedback.
Participate in Java Coding Challenges
Show steps
Test your skills and gain valuable experience by participating in Java coding challenges, where you can compete with other participants to solve real-world programming problems.
Browse courses on
Data Structures
Show steps
Show steps
Show steps
- Find Java coding challenges online (e.g., HackerRank, CodeChef, LeetCode).
- Choose a challenge that matches your skill level.
- Study the problem statement carefully.
- Develop a solution using Java data structures and algorithms.
- Submit your solution and compare your performance with others.
Contribute to Open-Source Java Projects
Show steps
Dive deeper into Java development by contributing to open-source projects, where you can collaborate with other developers and gain exposure to larger codebases.
Browse courses on
Open-Source
Show steps
Show steps
Show steps
- Find open-source Java projects on GitHub or other platforms.
- Identify areas where you can contribute your skills.
- Fork the project and create a branch for your changes.
- Make your changes and test them thoroughly.
- Create a pull request to merge your changes back into the main project.
Career center
Learners who complete Java Built in Data Structures will develop knowledge and skills
that may be useful to these careers:
Data Analyst
Data Analyst
Data Analysts use data to solve business problems by gaining insights from data and drawing conclusions from them. They compile and analyze large amounts of data from various sources and implement advanced analytics techniques to solve problems and provide valuable insights. They present complex data in clear and concise ways to communicate findings to stakeholders. This course can help aspiring Data Analysts build a foundation in Java's built-in data structures, which are essential for storing, organizing, and manipulating large datasets. The course covers ArrayLists, LinkedLists, Hashmaps, and Sets, which are commonly used in data analysis for organizing and accessing data efficiently.
Software Engineer
Software Engineer
Software Engineers apply engineering principles to design, develop, maintain, and test software systems. They use programming languages and software development tools to create and improve software products. This course can help aspiring Software Engineers build a foundation in Java's built-in data structures, which are essential for storing, organizing, and manipulating data in software applications. The course covers ArrayLists, LinkedLists, Hashmaps, and Sets, which are commonly used in software development for organizing and accessing data efficiently.
Data Scientist
Data Scientist
Data Scientists use data to solve business problems by developing and implementing machine learning and statistical models. They analyze large amounts of data to identify patterns and trends, and use this information to make predictions and recommendations. This course can help aspiring Data Scientists build a foundation in Java's built-in data structures, which are essential for storing, organizing, and manipulating large datasets. The course covers ArrayLists, LinkedLists, Hashmaps, and Sets, which are commonly used in data science for organizing and accessing data efficiently.
Database Administrator
Database Administrator
Database Administrators design, implement, and maintain database systems. They ensure that data is stored, organized, and accessed efficiently and securely. This course can help aspiring Database Administrators build a foundation in Java's built-in data structures, which are essential for storing, organizing, and manipulating data in database systems. The course covers ArrayLists, LinkedLists, Hashmaps, and Sets, which are commonly used in database management for organizing and accessing data efficiently.
Business Analyst
Business Analyst
Business Analysts use data to solve business problems by analyzing and interpreting data to identify opportunities and risks. They work with stakeholders to gather requirements and develop solutions to improve business processes. This course can help aspiring Business Analysts build a foundation in Java's built-in data structures, which can be useful for storing, organizing, and manipulating data during the analysis process. The course covers ArrayLists, LinkedLists, Hashmaps, and Sets, which are commonly used in business analysis for organizing and accessing data efficiently.
Technical Writer
Technical Writer
Technical Writers create and maintain documentation for software and other technical products. They explain complex technical concepts to non-technical audiences in a clear and concise way. This course can help aspiring Technical Writers build a foundation in Java's built-in data structures, which can be useful for understanding and explaining technical concepts related to data storage and management. The course covers ArrayLists, LinkedLists, Hashmaps, and Sets, which are commonly used in software development and documentation.
Project Manager
Project Manager
Project Managers plan, execute, and close projects. They work with stakeholders to define project goals, develop project plans, and track project progress. This course can help aspiring Project Managers build a foundation in Java's built-in data structures, which can be helpful for organizing and managing project data. The course covers ArrayLists, LinkedLists, Hashmaps, and Sets, which can be used to store project tasks, resources, and other data in an organized and efficient way.
Quality Assurance Analyst
Quality Assurance Analyst
Quality Assurance Analysts test software and other products to ensure that they meet quality standards. They identify and report defects, and work with developers to fix them. This course can help aspiring Quality Assurance Analysts build a foundation in Java's built-in data structures, which can be helpful for understanding and testing data-related features. The course covers ArrayLists, LinkedLists, Hashmaps, and Sets, which are commonly used in software development for storing and manipulating data.
Computer Programmer
Computer Programmer
Computer Programmers write and maintain computer code. They translate designs and specifications into code that computers can execute. This course can help aspiring Computer Programmers build a foundation in Java's built-in data structures, which are essential for storing, organizing, and manipulating data in software applications. The course covers ArrayLists, LinkedLists, Hashmaps, and Sets, which are commonly used in programming for organizing and accessing data efficiently.
Information Security Analyst
Information Security Analyst
Information Security Analysts protect computer systems and networks from unauthorized access, use, disclosure, disruption, modification, or destruction. They develop and implement security measures to prevent and detect security breaches. This course can help aspiring Information Security Analysts build a foundation in Java's built-in data structures, which can be helpful for understanding and implementing security measures for data storage and management. The course covers ArrayLists, LinkedLists, Hashmaps, and Sets, which are commonly used in security for organizing and accessing data securely.
User Experience Designer
User Experience Designer
User Experience Designers create and improve user interfaces for websites, apps, and other products. They focus on making products easy to use, enjoyable, and efficient. This course can help aspiring User Experience Designers build a foundation in Java's built-in data structures, which can be helpful for understanding and designing data-driven user interfaces. The course covers ArrayLists, LinkedLists, Hashmaps, and Sets, which can be used to store and organize user data and preferences.
System Administrator
System Administrator
System Administrators maintain and repair computer systems and networks. They ensure that systems are running smoothly and efficiently, and that data is backed up and secure. This course can help aspiring System Administrators build a foundation in Java's built-in data structures, which can be helpful for understanding and managing system data. The course covers ArrayLists, LinkedLists, Hashmaps, and Sets, which can be used to store and organize system logs, configuration files, and other data.
Network Engineer
Network Engineer
Network Engineers design, implement, and maintain computer networks. They ensure that networks are reliable, secure, and efficient. This course can help aspiring Network Engineers build a foundation in Java's built-in data structures, which can be helpful for understanding and managing network data. The course covers ArrayLists, LinkedLists, Hashmaps, and Sets, which can be used to store and organize network configurations, traffic data, and other data.
Data Entry Clerk
Data Entry Clerk
Data Entry Clerks enter data into computer systems from paper or electronic forms. They ensure that data is accurate and complete, and that it is entered in a timely manner. This course may be helpful for aspiring Data Entry Clerks, as it can help them build a basic understanding of data structures and data management.
Customer Service Representative
Customer Service Representative
Customer Service Representatives provide support to customers by answering questions, resolving issues, and processing orders. This course may be helpful for aspiring Customer Service Representatives, as it can help them build a basic understanding of data structures and data management. This can be useful for organizing and managing customer data, such as order history, preferences, and contact information.
For more career information including salaries, visit:
OpenCourser.com/course/9949wy/java
Reading list
We've selected 11 books
that we think will supplement your
learning. Use these to
develop background knowledge, enrich your coursework, and gain a
deeper understanding of the topics covered in
Java Built in Data Structures.
Save
Provides a collection of 78 concise and practical guidelines for writing effective Java code. It valuable resource for experienced Java programmers who want to improve their coding skills.
Comprehensive guide to Java concurrency. It covers all aspects of concurrency, from basic concepts to advanced topics such as locks and thread pools.
Provides a comprehensive overview of the Java programming language, covering both the core language and the Java platform. It valuable reference for both beginners and experienced Java programmers.
Provides a comprehensive guide to performance tuning in Java. It covers all aspects of performance tuning, from basic concepts to advanced topics such as profiling and optimization.
Save
Provides a comprehensive guide to Java security. It covers all aspects of Java security, from basic concepts to advanced topics such as cryptography and access control.
Provides a comprehensive guide to network programming in Java. It covers all aspects of network programming, from basic concepts to advanced topics such as sockets and protocols.
Provides a comprehensive guide to Java persistence with Hibernate. It covers all aspects of persistence with Hibernate, from basic concepts to advanced topics such as caching and performance tuning.
Save
Provides a comprehensive guide to the Spring framework. It covers all aspects of the Spring framework, from basic concepts to advanced topics such as dependency injection and web development.
Provides a comprehensive guide to artificial intelligence with Java. It covers all aspects of artificial intelligence with Java, from basic concepts to advanced topics such as machine learning and deep learning.
Save
Beginner-friendly introduction to the Java programming language. It uses a unique and engaging approach to teaching Java, making it a great choice for those new to programming.
Provides a comprehensive overview of generics and collections in Java. It covers both the theoretical and practical aspects of generics, making it a valuable resource for both beginners and experienced Java programmers.
For more information about how these books relate to this course, visit:
OpenCourser.com/course/9949wy/java
Share
Similar courses
Similar courses are unavailable at this time. Please try again later.
Our mission
OpenCourser helps millions of learners each year. People visit us to learn workspace skills, ace their exams, and nurture their curiosity.
Our extensive catalog contains over 50,000 courses and twice as many books. Browse by search, by topic, or even by career interests. We'll match you to the right resources quickly.
Find this site helpful? Tell a friend about us.
Affiliate disclosure
We're supported by our community of learners. When you purchase or subscribe to courses and programs or purchase books, we may earn a commission from our partners.
Your purchases help us maintain our catalog and keep our servers humming without ads.
Thank you for supporting OpenCourser.
© 2016 - 2025 OpenCourser