Java Basics Tutorial – Part 4 – Data and Calculations

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In this part of the Java Bascics Tutorial, we take a look at Data and Calculations.

In this episode, we continue with the Java Basics Tutorial. That is the fourth part of this series, and if you want to see the complete list of lessons, you can do it here.


Data types specify the different sizes and values stored in a variable. There are two types of data in Java:

  • Primitive data types
  • Non-primitive data types


To start, we will be using these data types only:

  • int –  holds a wide range of non-fractional number values.
  • double – only takes up to 8 bits of memory
  • boolean – can contain only two values: true or false.
  • char – is a symbol representing a Unicode-encoded character.
  • String – is a sequence of characters


Besides printing them on the console, we can use them for various arithmetic operations. The table on the right shows different types of arithmetic operations. All of them are the same as the arithmetic operations you have learned in school.

These may seem like simple operators, but when correctly, used they can be of help on more complex projects.

Lesson Topics

In this video we review the following topics:
  • Variables
  • Data Types
  • Statements
  • Arithmetic Operators
  • Expressions

Remember that coding is a skill, which should be practiced. To learn to code, you should write code every day for a long time. Watching tutorials is not enough. You should code! 

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