Different types of Java Operators

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 >>>.

public class BitwiseOperators {
  public static void main(String args[]) {
    System.out.println(~3 );
    System.out.println(3 & 5);
    System.out.println(3 | 4);
    System.out.println(5 ^ 4);
    System.out.println(3 << 3);
    System.out.println(-6 >> 2);	  
    System.out.println(6 >>> 2);	     
  }
}

-4
1
7
1
24
-2
1

The exam objectives specify six "logical" operators (&, |, ^, !, &&, and ||). Some Oracle documentation uses other terminology for these operators, but for our purposes and in the exam objectives, these six are the logical operators.

Of the six logical operators listed above, three of them (&, |, and ^) can also be used as "bitwise" operators. Bitwise operators were included in previous versions of the exam, but they are NOT on the Java 6 or Java 7 exam.
Here are several legal statements that use bitwise operators:

byte b1 = 6 & 8;
byte b2 = 7 | 9;
byte b3 = 5 ^ 4;
System.out.println(b1 + " " + b2 + " " + b3);

Bitwise operators compare two variables bit-by-bit and return a variable whose bits have been set based on whether the two variables being compared had respective bits that were either both "on" (&), one or the other "on" (|), or exactly one "on" (^). By the way, when we run the preceding code, we get
0 15 1

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.