etail**  
---  
  
###  IsIn

    
    
    public **IsIn**(java.util.Collection<[T](../../../org/hamcrest/collection/IsIn.html "type parameter in IsIn")> collection)

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###  IsIn

    
    
    public **IsIn**([T](../../../org/hamcrest/collection/IsIn.html "type parameter in IsIn")[] elements)

**Method Detail**  
---  
  
###  matches

    
    
    public boolean **matches**(java.lang.Object o)

     **Description copied from interface:` [ Matcher ](../../../org/hamcrest/Matcher.html#matches\(java.lang.Object\)) ` **
     Evaluates the matcher for argument  item  . 

This method matches against Object, instead of the generic type T. This is
because the caller of the Matcher does not know at runtime what the type is
(because of type erasure with Java generics). It is down to the
implementations to check the correct type.

    

**Parameters:**      ` o ` \- the object against which the matcher is
evaluated.  **Returns:**      ` true ` if  item  matches, otherwise ` false `
.  **See Also:**      [ ` BaseMatcher `
](../../../org/hamcrest/BaseMatcher.html "class in org.hamcrest")

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###  describeTo

    
    
    public void **describeTo**([Description](../../../org/hamcrest/Description.html "interface in org.hamcrest") buffer)

     **Description copied from interface:` [ SelfDescribing ](../../../org/hamcrest/SelfDescribing.html#describeTo\(org.hamcrest.Description\)) ` **
     Generates a description of the object. The description may be part of a a description of a larger object of which this is just a component, so it should be worded appropriately. 

    

**Parameters:**      ` buffer ` \- The description to be built or appended to.

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###  isIn

    
    
    public static <T> [Matcher](../../../org/hamcrest/Matcher.html "interface in org.hamcrest")<T> **isIn**(java.util.Collection<T> collection)

     Creates a matcher that matches when the examined object is found within the specified collection. 

For example:

    
    
    assertThat("foo", isIn(Arrays.asList("bar", "foo")))

    

**Parameters:**      ` collection ` \- the collection in which matching items
must be found

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###  isIn

    
    
    public static <T> [Matcher](../../../org/hamcrest/Matcher.html "interface in org.hamcrest")<T> **isIn**(T[] elements)

     Creates a matcher that matches when the examined object is found within the specified array. 

For example:

    
    
    assertThat("foo", isIn(new String[]{"bar", "foo"}))

    

**Parameters:**      ` elements ` \- the array in which matching items must be
found

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###  isOneOf

    
    
    public static <T> [Matcher](../../../org/hamcrest/Matcher.html "interface in org.hamcrest")<T> **isOneOf**(T... elements)

     Creates a matcher that matches when the examined object is equal to one of the specified elements. 

For example:

    
    
    assertThat("foo", isIn("bar", "foo"))

    

**Parameters:**      ` elements ` \- the elements amongst which matching items
will be found

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