UNIT-1 PART-3
Separators
=> Separators are symbols used to indicate where groups of code are divided and arranged.
=> They basically define the shape and function of our code.
1. Parentheses ()
o Parentheses are used to contain lists of parameters in method definition and invocation.
o Parentheses are used for defining precedence in expressions, containing expressions in control statements and surrounding cast types.
o Separators are symbols used to indicate where groups of code are divided and arranged.
o They basically define the shape and function of our code.
Variables
=> The variable is the basic unit of storage in a java program.
=> A variable is defined by the combination of identifiers, a type and an optional initialize.
=> All variables have a scope, which defines their visibility and a life time.
Declaring a Variable: -
All variables must be declared before they can be used. The basic form of a variable declaration is shown here.
Type identifier [= value] [, identifier [=value]...];
Int a,b,c; // declare 3 integers
Byte z = 22; // initialize z
Char x = ‘X’; // the variable x has the value ‘X’
Dynamic Initialization:
=> Java allows variables to be initialized dynamically using any valid expression at the time the variable is declared.
Data Types
