ariba.util.core
Class ArithmeticUtil

java.lang.Object
  ariba.util.core.ArithmeticUtil

public abstract class ArithmeticUtil
extends Object

Constructor Summary

ArithmeticUtil()

Method Summary

static Number	add(Number first, Number second) Adds first to second and returns the result.
static int	compare(Number first, Number second) Compares first to second and returns the result.
static Number	divide(Number first, Number second) Divides first by second and returns the result.
static Number	evaluate(Number first, Arithmetic.Operation operation, Number second) Evaluates first to second with respect to the specified operation and returns the result.
static Arithmetic	getArithmetic(Number first, Number second) Returns the instance of Arithmetic corresponding to evaluating a simple arithmetic expression containing first and second.
static boolean	isInteger(Number number) Returns true if number is one of the integer types and false otherwise.
static Number	multiply(Number first, Number second) Multiplies first by second and returns the result.
static Number	subtract(Number first, Number second) Subtracts second from first and returns the result.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ArithmeticUtil

public ArithmeticUtil()

Method Detail

getArithmetic

public static Arithmetic getArithmetic(Number first,
                                       Number second)

Returns the instance of Arithmetic corresponding to evaluating a simple arithmetic expression containing first and second.

Parameters:

first - the first Number; may not be null

second - the second Number; may not be null

Returns:

the Arithmetic instance; is not null

isInteger

public static boolean isInteger(Number number)

Returns true if number is one of the integer types and false otherwise.

evaluate

public static Number evaluate(Number first,
                              Arithmetic.Operation operation,
                              Number second)

Evaluates first to second with respect to the specified operation and returns the result.

The value operation must be one of: OpAdd, OpSubtract, OpMultiply, OpDivide.

Parameters:

first - the first number; may not be null

operation - the arithmetic operation

second - the second number; may not be null

add

public static Number add(Number first,
                         Number second)

Adds first to second and returns the result.

Parameters:

first - the first number; may not be null

second - the second number; may not be null

subtract

public static Number subtract(Number first,
                              Number second)

Subtracts second from first and returns the result.

Parameters:

first - the first number; may not be null

second - the second number; may not be null

multiply

public static Number multiply(Number first,
                              Number second)

Multiplies first by second and returns the result.

Parameters:

first - the first number; may not be null

second - the second number; may not be null

divide

public static Number divide(Number first,
                            Number second)

Divides first by second and returns the result.

Parameters:

first - the first number; may not be null

second - the second number; may not be null

compare

public static int compare(Number first,
                          Number second)

Compares first to second and returns the result.

Parameters:

first - the first number; may not be null

second - the second number; may not be null