ContainUtil (Struts 2 Core 2.5.16 API)

```
public class ContainUtil
extends Object
```
ContainUtil will check if object 1 contains object 2. Object 1 may be an Object, array, Collection, or a Map

Constructors
Constructor and Description
`ContainUtil()`

Methods
Modifier and Type	Method and Description
`static boolean`	`contains(Object obj1, Object obj2)` Determine if `obj2` exists in `obj1`.

public static boolean contains(Object obj1,
               Object obj2)

Determine if obj2 exists in obj1.

Type Of obj1	Comparison type
null		always return false
Map	Map containsKey(obj2)
Collection	Collection contains(obj2)
Array	there's an array element (e) where e.equals(obj2)
Object	obj1.equals(obj2)

Parameters:: obj1 - first object; obj2 - second object
Returns:: true if first object contains second object or if the are equals, otherwise false

Class ContainUtil