0. The method addSorted is a little weird. This Tutorial Explains Various Java List Methods such as Sort List, List Contains, List Add, List Remove, List Size, AddAll, RemoveAll, Reverse List & More: We have already discussed the list interface in general in our previous tutorial. Java ArrayList contains() – Check if element exists ArrayList contains() method is used to check if the specified element exists in the given arraylist or not. int indexOf(Object element) This method returns the index of the first occurrence of the specified element in the given list, or -1 if the list doesn't contain the element.. In the above example, we have used the contains() method to check if elements Java and C++ are present in the arraylist languages. Java List Methods – Sort List, Contains, List Add, List Remove. List Data ContainsAll Exactly Data In Other List. contains() method returns true if the object is present in the list, else the method returns false. Contentscontains()Example with Custom ObjectindexOf()Looping to Find Element in Java ListUse Stream Filter of Java 8Use Google GuavaConclusion contains() Signature method: [crayon-6004fe3c73342547027943/] -> Returns true if the list contains at least one element e … Last Updated: January 18, 2021. So logically, if this method returns anything other than -1, we know that the list contains the element: The methods it defines are different from the existing Java List interface, but maybe you can derive your List from the Java version with a new name and extend it with additional methods. 1. If element exist then method returns true , else false . Efficient search for not empty intersection (Java) 3. You can call contains() method on the ArrayList, with the element passed as argument to the method. To check if ArrayList contains a specific object or element, use ArrayList.contains() method. Check if ArrayList contains a Specific Object. Since, Java … indexOf is another useful method for finding elements:. Which is the fastest way for a containsAny check? Check if list contains element that contains a string and get that element. How to check a list result as a HashMap value for a given String. Java List containsAll() Method. How to use assertNotEquals for 2 lists of different size. 0. The containsAll() method of List interface returns a Boolean value 'true' if this list contains all the elements of the invoked collection. 0. 12. java how to check if a list is in another list. List to Stream From Java 8, you can convert a List to a stream to take advantages of the Streams API: List.stream(): returns a sequential stream. 0. Note that the returned array contains copies of elements in the list, which that means we can safely modify the array without affecting the list. A list contains at least one value from another list (Java 8) 2. 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