Introduction to operators in java

Operators in java are similar to c++ and c.
Operators are actions that manipulate, combine or compare variables.

They fall into several categories as follows:

Operators	Symbols
Assignment	+= -= *= \= %=
Arithmetic	+ - * / % (modulus) ++ (increment) -- (decrement)
String Concatenation	+
Comparison or Relational Operators	== , != , > , >= , < <=
Logical OR Boolean Comparison	! & | ^ && || (&& are short circuit ops)
Bitwise Comparison	~ & | ^ (xor) << >> >>>
Bitwise Assignment	&= |= ^= (xor) <<= >>= >>>=
Conditional operator	? (eg (expr1) ? expr2 : expr3 )
Object Creation	new (eg int a[] = new int[10];)
Class of Object	instanceof
Casting of Type	(var_type)

Note: Changes in data type are done explicitly using a cast operation. For examplea = (int) b; assumes a is of type int and b is of another type.

Number of Operands for Operators

Java operators can be classified as unary, binary, or ternary—meaning taking one, two, or three arguments, respectively. A unary operator may appear
before (prefix) its argument or after (postfix) its argument. A binary or ternary operator appears between its arguments.