```
public class NumberUtil
extends Object
```
NOTE: this class reimplements JLS sections 5.6.1 (unary numeric promotion) and 5.6.2 (binary numeric promotion) to reduce casts and instanceof checks.

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static Number`	`add(Number n1, Number n2)`
`static Number`	`divide(Number n1, Number n2)`
`static boolean`	`greaterThan(Number n1, Number n2)`
`static boolean`	`isEqual(Number n1, Number n2)`
`static boolean`	`lessThan(Number n1, Number n2)`
`static Number`	`multiply(Number n1, Number n2)`
`static Number`	`negative(Number n)`
`static Number`	`subtract(Number n1, Number n2)`

public static Number multiply(Number n1,
                              Number n2)

public static Number add(Number n1,
                         Number n2)

public static boolean greaterThan(Number n1,
                                  Number n2)

public static Number divide(Number n1,
                            Number n2)

public static boolean lessThan(Number n1,
                               Number n2)

public static Number subtract(Number n1,
                              Number n2)

public static Number negative(Number n)

public static boolean isEqual(Number n1,
                              Number n2)

Class NumberUtil