Web Reference: Data types are divided into two groups: Primitive data types - includes byte, short, int, long, float, double, boolean and char Non-primitive data types - such as String, Arrays and Classes (you will learn more about these in a later chapter) Jan 16, 2026 · Java is a statically typed programming language, which means the data type of every variable is known at compile time. The compiler enforces type safety and prevents invalid assignments such as: An integer literal is of type long if it ends with the letter L or l; otherwise it is of type int. It is recommended that you use the upper case letter L because the lower case letter l is hard to distinguish from the digit 1. Values of the integral types byte, short, int, and long can be created from int literals. Values of type long that exceed t...
YouTube Excerpt: Good foundation for the primitive
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