Data Types - Ellipsis Education

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Data Types

Java for School Students

Storage can happen in baskets, stadiums, flash drives – and Java code. Use this Java coding lesson to introduce the concept of variables and the data types they store. This lesson is built for grades 6-8.

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About the Lesson

Students will be introduced to the data types used in the Java programming language. Students will spend time analyzing, discussing, and manipulating code to enhance their understanding of the syntax required when establishing variables in Java. Students will discuss the concepts of variables and data types and how they are related. Students will be exposed to creating and printing basic Java variables, and will then independently finish a program that prints strings of characters and existing variables to the screen. This lesson is built for grades 6-8 and includes links to the appropriate materials and resources, a detailed procedure, activity tips, and a bonus challenge activity.

  • Students will be able to explain and establish variables of different data types.

  • Students will be able to identify, interpret, and implement classes and methods while developing a software program.

  • Students will be able to identify, evaluate, and address errors through testing and debugging of a coded program.

  • Methods

  • Variables

  • Data Types

  • String

  • Integer

  • Character

  • Boolean

  • Double

Java for Beginners


Storage can happen in baskets, stadiums, flash drives – and Java code. Use this Java coding lesson to introduce the concept of variables and the data types they store. This lesson is built for grades 6-8.

Explore courses in this grade band:

Middle School Computer Science Curriculum

Ellipsis Education provides K-12 computer science curriculum. This lesson represents Ellipsis Education Computer Science Applications courses, made for grades 6-8. Motivate your students with courses that connect to their world. Coding lessons use line based languages JavaScript, HTML, CSS, and Java to explore programming options. Learn more about each Computer Science Applications course below.


Examine fundamental computer science concepts with JavaScript. Integrate conditionals, loops, and arrays in functions to enable user actions on a website. Discuss ethical online behavior and STEM careers.


Use JavaScript and design best practices to solve real-world problems. Expand understanding of concepts including functions, conditionals, and arrays. Discuss collaboration and problem-solving techniques.


Deepen existing computer science skills using Java. Explore loops, objects, methods, and classes to build applications like a fitness tracker. Discuss incorporating feedback and physical security measures.

STEM Careers that Use Java


System Engineers (sometimes called System Architects) are hired for their expertise around IT (information technology) solutions. They propose and maintain combinations of hardware, software, tools, and frameworks that help the business in its day-to-day operations. Knowledge of Java is crucial because the language’s universal nature helps all of these programs communicate with one another. Systems Engineers also must be great team players; they often work with the end users of their solutions to receive feedback and improve processes.


Backend Developers create and maintain the parts of a website or app that a user never sees. This generally includes three components: a server, an application, and a database. Backend Developers use Java to build the parts of the program and make sure all these components can communicate with each other. Furthermore, they make sure that actions, like adding an item to a cart or filling out a form, execute quickly and correctly. Backend Developers must be creative and inquisitive because they frequently work with development teams to problem solve and debug their code.


Video Game Developers take a concept or design and turn it into a playable game. They use multiple programming languages, like Java, C, and C++, to create movements, program non-playable characters (NPCs), and construct terrain. Since games release on different platforms and consoles, Game Developers make sure that the game works correctly regardless of location. Video Game Developers must have critical thinking skills to turn a concept to reality and strong communication skills to convey their ideas to others.


Android Developers create apps for the Android Marketplace, which is a direct competitor to the Apple App store. Smartphones like the Google Pixel and Samsung Galaxy require the Android versions of apps we use everyday, like social media apps and music streaming apps. The Android Marketplace has its own set of requirements; Android Developers use their knowledge of said requirements and programming languages (like Java) to design, build, and debug various app features. Android Developers must have strong creative and collaborative skills to work with teams and bring these apps to life.

Computer Lesson Plans for Middle School

Looking for more? Here are other downloads that are representative of Ellipsis Education Computer Science Applications for grades 6-8. Mix and match Ellipsis Education free resources to organize your own hour of code event.

Removing barriers to teaching computer science.