Snippets tagged “hashset”
6 snippets use this tag.
- Convert Set to List without creating new ListJava
To convert a Set to a List in Java without creating a new List object, you can use the List constructor that takes a Collection as an argument.
- Easiest way to convert a List to a Set in JavaJava
To convert a List to a Set in Java, you can use the new HashSet<>(list) constructor to create a new HashSet and initialize it with the elements of the List.
- How do I remove repeated elements from ArrayList?Java
To remove repeated elements from an ArrayList in Java, you can use the removeAll method and pass it a Collection containing the elements to be removed.
- How to convert an Array to a Set in JavaJava
To convert an array to a Set in Java, you can use the Arrays.asList() method to create a List from the array, and then use the List.toSet() method to create a Set from the List.
- How to initialize HashSet values by construction?Java
To initialize the values of a HashSet when constructing the set, you can use one of the HashSet constructors that takes a Collection as an argument.
- Why do I need to override the equals and hashCode methods in Java?Java
The equals() and hashCode() methods are two methods that are defined in the Object class, which is the superclass of all classes in Java.