We can use clear() method to remove all elements from linkedhashset in java. Syntax: linkedHashSet.clear(); Example: package com.w3schools;   import java.util.LinkedHashSet;   public class Test { public static void main(String args[]){ //Create LinkedHashSet LinkedHashSet<String> linkedHashSet = new LinkedHashSet<String>(); //Add elements to LinkedHashSet linkedHashSet.add("Jai"); linkedHashSet.add("Mahesh"); linkedHashSet.add("Vikas"); linkedHashSet.add("Sahil"); linkedHashSet.add("Sachin"); linkedHashSet.add("Vijay"); System.out.println("LinkedHashSet: " + linkedHashSet); linkedHashSet.clear(); System.out.println("LinkedHashSet after … Read more

We can use addAll() method to add all elements of a set to linkedhashset in java. Syntax: linkedHashSet.addAll(subSet); Example: package com.w3schools;   import java.util.HashSet; import java.util.LinkedHashSet;   public class Test { public static void main(String args[]){ //Create LinkedHashSet LinkedHashSet<String> linkedHashSet = new LinkedHashSet<String>(); //Add elements to LinkedHashSet linkedHashSet.add("Jai"); linkedHashSet.add("Mahesh"); linkedHashSet.add("Vikas"); linkedHashSet.add("Sahil"); linkedHashSet.add("Sachin"); linkedHashSet.add("Vijay"); System.out.println("LinkedHashSet: " … Read more

We can use toArray() method to convert linkedhashset to array in java. Syntax: linkedHashSet.toArray(strArray); Example: package com.w3schools;   import java.util.LinkedHashSet;   public class Test { public static void main(String args[]){ //Create LinkedHashSet LinkedHashSet<String> linkedHashSet = new LinkedHashSet<String>(); //Add elements to LinkedHashSet linkedHashSet.add("Jai"); linkedHashSet.add("Mahesh"); linkedHashSet.add("Vikas"); linkedHashSet.add("Sahil"); linkedHashSet.add("Sachin"); linkedHashSet.add("Vijay"); System.out.println("LinkedHashSet: " + linkedHashSet); String[] strArray = new … Read more

Example: package com.w3schools;   import java.util.Iterator; import java.util.LinkedHashSet;   public class Test { public static void main(String args[]){ //Create LinkedHashSet LinkedHashSet<String> linkedHashSet = new LinkedHashSet<String>(); //Add elements to LinkedHashSet linkedHashSet.add("Jai"); linkedHashSet.add("Mahesh"); linkedHashSet.add("Vikas"); linkedHashSet.add("Sahil"); linkedHashSet.add("Sachin"); linkedHashSet.add("Vijay"); Iterator<String> iterator = linkedHashSet.iterator(); while(iterator.hasNext()){ System.out.println(iterator.next()); } } }package com.w3schools; import java.util.Iterator; import java.util.LinkedHashSet; public class Test { public static … Read more

Example: package com.w3schools;   import java.util.HashSet;   class Employee{ private String name; private int salary; private int id;   public Employee(int id, String name, int salary){ this.id = id; this.name = name; this.salary = salary; }   public String getName() { return name; } public void setName(String name) { this.name = name; } public int … Read more

We can use toArray() method to convert a hashset to an array in java. Syntax: hashSet.toArray(strArray); Example: package com.w3schools;   import java.util.HashSet;   public class Test { public static void main(String[] args) { //Create HashSet object HashSet<String> hashSet = new HashSet<String>(); //Add elements to HashSet hashSet.add("Jai"); hashSet.add("Mahesh"); hashSet.add("Vivek"); hashSet.add("Naren"); hashSet.add("Vishal"); hashSet.add("Hemant"); System.out.println("HashSet: " + hashSet); … Read more

We can use clear() method to remove all elements from hashset in java. Syntax: hashSet.clear(); Example: package com.w3schools;   import java.util.HashSet;   public class Test { public static void main(String[] args) { //Create HashSet object HashSet<String> hashSet = new HashSet<String>(); //Add elements to HashSet hashSet.add("Jai"); hashSet.add("Mahesh"); hashSet.add("Vivek"); hashSet.add("Naren"); hashSet.add("Vishal"); hashSet.add("Hemant"); System.out.println("HashSet: " + hashSet); hashSet.clear(); … Read more

We can use addAll() method to copy set content to another hashset in java. Syntax: hashSet.addAll(subSet); Example: package com.w3schools;   import java.util.HashSet;   public class Test { public static void main(String[] args) { //Create HashSet object HashSet<String> hashSet = new HashSet<String>(); //Add elements to HashSet hashSet.add("Jai"); hashSet.add("Mahesh"); hashSet.add("Vivek"); hashSet.add("Naren"); hashSet.add("Vishal"); hashSet.add("Hemant"); System.out.println("HashSet: " + hashSet); … Read more

Example: package com.w3schools;   import java.util.HashSet; import java.util.Iterator;   public class Test { public static void main(String[] args) { //Create HashSet object HashSet<String> hashSet = new HashSet<String>(); //Add elements to HashSet hashSet.add("Jai"); hashSet.add("Mahesh"); hashSet.add("Vivek"); hashSet.add("Naren"); hashSet.add("Vishal"); hashSet.add("Hemant"); Iterator<String> iterator = hashSet.iterator(); while(iterator.hasNext()){ System.out.println(iterator.next()); } } }package com.w3schools; import java.util.HashSet; import java.util.Iterator; public class Test { … Read more

Example: package com.w3schools;   public class LinkedList { static Node head; static class Node { int data; Node next; Node(int data) { this.data = data; this.next = null; } }   void removeDuplicates() { Node ptr1 = null, ptr2 = null, duplicate = null; ptr1 = head; while (ptr1 != null && ptr1.next != null) … Read more