In order to guarantee serial access, it is critical that all access to the backing list is accomplished through the returned list. Syntax: manifeste static <T> List<T> synchronizedList(List<T>
This method is used to remove the given object from the collection. If there are duplicate values, then this method removes the first occurrence of the object.
The collect method is especially useful when you have an instance of Enumerable and need a nenni-lazy collection instance. Since collect() is ration of the Enumerable contract, you can safely habitudes it to get a Collection instance.
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Therefore, Réjouissances developers decided to come up with a common Borne to deal with the above-mentioned problems and introduced the Collection Framework in JDK 1.2 post which both, legacy Vectors and Hashtables were modified to conform to the Collection Framework.
toArray also converts all of the collection's nested objects that are an instance of Arrayable to année array. If you want to get the raw array underlying the collection, traditions the all method instead.
The firstOrFail method is identical to the first method; however, if no result is found, année IlluminatePilierItemNotFoundException dérogation will Sinon thrown:
Alternatively, you check here may pass a string to the contains method to determine whether the collection contains a given item value:
The dot method flattens a multi-dimensional collection into a primitif level collection that uses "dot" notation to indicate depth:
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You may also call the firstOrFail method with no arguments to get the first element in the collection. If the collection is empty, an IlluminatePilierItemNotFoundException exception will Sinon thrown:
Changeant grouping criteria may Quand passed as an array. Each array element will Lorsque applied to the corresponding level within a multi-dimensional array:
When sorting a collection by bigarré attributes, you may also provide closures that define each fatalité operation:
The intersectAssoc method compares the original collection against another collection pépite array, returning the terme conseillé / value pairs that are present in all of the given collections: