Chapter 2: Language Fundamentals

Chapter 2: Language Fundamentals

1. Encoding Sets

   • Java uses unicode, which allows for more characters to be used than in ASCII, such as different languages
     • There are 3 different compression algorithms from unicode to ASCII: UTF-8, UTF-16, and UTF-32.

2. Primitives

   • A non object data type variable, composed of simple information between 8 and 64 bits.
     • Includes byte, short, int, long, float, double, char and boolean.

3. Constants

   • Variables with permanent values.
     • Declared by typing 'final' first. final int a = 15;

4. Variables

   • A data placeholder. Needs a specified data type
     • Includes primitives, strings, etc. Declared like this: int a = 15

5. Literals

   • Values assigned to variables, must be within the data type limit.
     • int a = 15; works. byte a = 200; does not work

6. Separators

   • Characters which denote specific operations or sets in java.
     • Includes (), {}, [], <>, ;, :, ., and ,.