The arithmetic operators are the most commonly used Java operators.
These operators consist of the unary operators, +, -, ++, and --, and the binary operators +, -, *, /, and %. The ++ and -- operators come in both prefix and postfix forms. The + operator is also used to identify concatenation between two string objects.

Java's bitwise operators consist of a single unary operator ~, and three binary operators, &, |, and ^, that perform bitwise operations on integer values. The binary shift operators are <<, >>, and >>>.

Java provides two groups of logical operators:

1. the boolean operators !, &, |, and
2. ^, and the logical short-circuit operators && and ||.

The logical operators are restricted to boolean operands.
The comparison operators consist of the relational operators

(<, <=, >, >=), 

the equality operators

(== and !=), 

and the instanceof operator.

Java's assignment operators consist of the simple assignment (=) operator, and the update and assign operators +=, -=, *=, /=,%=, &=, |=, ^=, <<=, >>=, and >>>=.

The ternary operator ? : (also referred to as the Conditional operator) has three operands and takes the following form:

operand1 ? operand2 : operand3

If the first operand (boolean) evaluates to true, the value of the second operand is returned. Otherwise, the value of the third operand is returned.

The cast^[1] operator (type) is used to convert numeric values from one numeric type to another, or to change an object reference to a compatible type.

[1]Cast: To convert from one type to another.