public class ContainUtil extends Object
ContainUtil
will check if object 1 contains object 2.
Object 1 may be an Object, array, Collection, or a MapConstructor and Description |
---|
ContainUtil() |
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)
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) |
obj1
- first objectobj2
- second objectCopyright © 2000–2020 Apache Software Foundation. All rights reserved.