For example, to add items to it, use the add() method:Example // Import the HashSet class import java.util.HashSet; public class Main { public static void main(String[] args) { HashSet<String> cars = new HashSet<String>(); cars.add("Volvo"); cars.add("BMW"); cars.add("Ford...
In the following example, we useadd,contains,clear, andisEmptymethods. Main.java import java.util.HashSet; import java.util.Set; void main() { Set<String> brands = new HashSet<>(); brands.add("Wilson"); brands.add("Nike"); brands.add("Volvo"); brands.add("Kia"); brands.add("...
Methods inherited from class java.util.AbstractCollection addAll,containsAll,retainAll,toArray,toArray,toString Methods inherited from class java.lang.Object finalize,getClass,notify,notifyAll,wait,wait,wait Methods inherited from interface java.util.Set addAll,containsAll,equals,hashCode,removeAll,retainAll...
In order to use this method, we must import the java.util.Iterator package. For example, import java.util.LinkedHashSet; import java.util.Iterator; class Main { public static void main(String[] args) { LinkedHashSet<Integer> numbers = new LinkedHashSet<>(); numbers.add(2); numbers....
Creates alate-bindingandfail-fastSpliteratorover the elements in this set. Methods inherited from class java.util.AbstractSet equals,hashCode,removeAll Methods inherited from class java.util.AbstractCollection addAll,containsAll,retainAll,toArray,toArray,toString ...
LinkedHashSet.AddLast(Object) MethodReference Feedback DefinitionNamespace: Java.Util Assembly: Mono.Android.dll To be added [Android.Runtime.Register("addLast", "(Ljava/lang/Object;)V", "GetAddLast_Ljava_lang_Object_Handler", ApiSince=35)] public virtual void AddLast (Java.Lang.Object?
import java.util.HashSet;import java.util.Iterator;publicclass t6 {publicstaticvoid main(String[] args) {// TODO Auto-generated method stub//创建HashSet集合HashSet hs=new HashSet();//向hs集合添加元素hs.add("aa");hs.add("bb");hs.add("cc");hs.add("dd");//获取Iterator对象Iterator ...
Note that encounter order is not affected if an element is re-inserted into the set with the add method. (An element e is reinserted into a set s if s.add(e) is invoked when s.contains(e) would return true immediately prior to the invocation.) The reverse-ordered view of this set...
Modifier and TypeMethod and Description Spliterator<E>spliterator() Creates alate-bindingandfail-fastSpliteratorover the elements in this set. Methods inherited from class java.util.HashSet add,clear,clone,contains,isEmpty,iterator,remove,size
This class is a member of theJava Collections Framework. Added in 1.2. Java documentation forjava.util.HashSet. Portions of this page are modifications based on work created and shared by theAndroid Open Source Projectand used according to terms described in theCreative Commons 2.5 Attribution Lic...