Java DataTypes

Working With Variables:
A variable represents a memory location which holds data (values).

Declaring a Variable:
Syn:-
   [access-spe] [modifier] datatype variablename;

   [access-spe] [modifier] datatype variablename=value, variablename[=value,]...;

        DataTypes
Integers:
byte       8bits     -128  to  127
short     16bits   -32,768  to  32,767
int         32bits   -2,147,483,648  to  2,147,483,647
long      64bits   -9,223,372,036,854,775,808   to   9,223,372,036,854,775,807

Reals:
float     32bits     1.4* (10**-45) to 3.4* (10**+38)
                          (7 digits after decimal point)
double  64bits     4.9* (10**-324) to 1.8* (10**+308) 
                          (15 digits)

Characters:
char    16bits    1char only

Booleans:
boolean    1bit    true or false

Strings:
String


f-s              datatype
%d             byte    short     int      long  
%f             float    double
%c            char
%s  %S    String
%b  %B   boolean
%h           hex-dec
%o           oct-dec

Priority (Precedence) Of Operators:
     > 1st, the contents inside the braces: (),  [] and . will be executed.
     > Next unary -,  ++,  --,  ~,  !
     > Next *,  /  and %
     > + and - will execute next
     > Bitwise operators >>,  <<,  >>>
     > Relational operators >,  >=,  <,  <=
     > Relational operators ==,  !=
     > Bitwise operators &,  ^,  |
     > Logical operators &&,  ||
     > Ternary ope ?:
     > Assignment   =,   ope=