 As was the case in Perl, Java provides several operators that you can use to manipulate your variables.
Mathematical Operators  As in all languages, Java allows you to perform math functions. The following table outlines the available functions:
Operator  Description  Example 

+  Performs addition  int x = 1; int y = 2; int z = x + y // z = 3    Performs subtraction  int x = 2; int y = 1; int z = x  y // z = 1  *  Performs multiplication  int x = 2; int y = 2; int z = x * y // z = 4  /  Performs division  int x = 4; int y = 2; int z = x / y // z = 2  %  Gets the remainder (modulus)  int x = 6; int y = 4; int z = x % y // z = 5 
 One thing to remember about mathematics in Java is that since variables are typed, you should be careful to match types or expect automatic casting! In other words, Java will return the result in a type that fits in the result regardless of what was used in the equation
Assignment Operators  As was alluded to in the last section, variables utilize assignment operators. However, if you are working with a numerical type, you have more assignment operators than simply "=". The following table outlines the other available assignment operators:
Operator  Description 

=  Equality. Note, you can chain assignments such as: x=y=x=0  +=  Addition  =  Subtraction  /=  Division. Don't forget about automatic casting! If your division returns a decimal number, it will be chopped to fit its type.  *=  Multiplication  %=  Modulus  ^=  Bitwise XOR  &=  Bitwise AND  =  Bitwise OR  <<=  Left Shift  >>=  Right Shift  >>>=  Zero Fill Right Shift 
Incrementation and Decrementation Precedence  Finally, Java maintains the usual operator hierarchy. The precedence table is shown below:
Precedence  Operator  Associativity 

1  ++, , ~!, +, , (unary), (type cast)  R  2  * / %  L  3  +, , + (concatination)  L  4  >>>, >>, <<  L  5  <, <=, >, >=  L  6  ==, !=  L  7  &  L  8  ^  L  9    L  10  &&  L  11    L  12  ?:  R  13  =, *=, /=, %=, +=, =, <<=, >>=, >>>=, &=, ^=, =  R  Previous Page Next Page
