First Task

First Task

1. Variables

   • Data placeholders that can be of type of type reference (reference to an object) or primitive (holds a primitive)
   • Has a name or identifier
   • Sun's Naming Convention ex: firstTimeLogin

2. Separators

   • Parentheses, braces, brackets, angle brackets, semicolon, colon, comma, period
   • As given by the name, separators work to separate or group lines of code including declarations, initializations, lists, etc.

3. Primitives

   • Data type
   • byte, short, int, long, float, double, char, boolean
   • Which primitive type is used may depend on the space/memory space needed
   • Char deals with unicode and boolean is true/false while the rest deal with numbers

4. Constants

   • Declared by using the keyword final
   • ex: final int ROW_COUNT = 50

5. Literals

   • Literals of primitive types have four subtypes: integer, floating-point, character and boolean
   • Integer literals are used to assign values to variables of types byte, short, int and long
   • Floating-point literals are used for two types of floating points: float and double
   • A boolean literal has two values: true and false
   • Character literals are unicode characters or escape sequences enclosed in single quotes