Calculations (ZK Pivot Table Components 3.1.0 API)

java.lang.Object
- org.zkoss.pivot.impl.util.Calculations

```
public class Calculations
extends Object
```
A utility class for the pivot package.

Author:

jumperchen

Constructor Summary

Constructors
Constructor Description

Calculations()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static int`	`compare(Object o1, Object o2)`	A common compareTo method for `String`, `Date`, `Float`, `Double`, `Integer`, `Long`, `Short`, `Byte`, `Calendar`, and `Boolean`.
`static Collection<Object>`	`getNonNullValues(Collection<Object> data)`	Filter the array to return an array containing only non null values
`static List<Number>`	`getNumericValues(Collection<Object> data, boolean strict)`	Filter the array to return an array containing only numeric values
`static Number`	`sum(Collection<Object> data)`	A common sum method for `Double`, `Float`, `Integer`, `Long`, `Short`, and `Byte`.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Calculations
```
public Calculations()
```
- Method Detail
  - compare
```
public static int compare(Object o1,
                          Object o2)
```
    A common compareTo method for String, Date, Float, Double, Integer, Long, Short, Byte, Calendar, and Boolean. Otherwise Object.toString() will be assumed.
  - sum
```
public static Number sum(Collection<Object> data)
```
    A common sum method for Double, Float, Integer, Long, Short, and Byte. Otherwise, it will count the data length.
  - getNonNullValues
```
public static Collection<Object> getNonNullValues(Collection<Object> data)
```
    Filter the array to return an array containing only non null values
  - getNumericValues
```
public static List<Number> getNumericValues(Collection<Object> data,
                                            boolean strict)
```
    Filter the array to return an array containing only numeric values