Language Fundamentals

Language Fundamentals

1. Encoding Sets

   • ASCII
     • 128 characters
       • 7 bits each
     • extended ASCII
       • 128 more characters
         • 8 bits each
   • Unicode
     • All languages in the world
     • 4 times as much data
   • Character encoding used to efficiently store data
     • UTF
       • 8
       • 16
       • 32

2. Separators

   • Parenthesis, brackets, braces, angle brackets, semicolon, colon, comma, period

3. Primitives

   • Byte, short, long, int, float, double, char, boolean

4. Variables

   • Reference
   • Primitive

5. Constants

   • keyword: final

6. Literals

   • Source code representation of a value
   • Integer Literals
     • For byte, short, int, long
   • Floating-Point Literals
     • Float, double
   • Boolean Literals
     • True and False
   • Character Literals