import java.util.HashSet; import java.util.Set; public class StringUtil { public static Set convertToSet(String string) { Set resultSet = new HashSet(); for (int i = 0; i < string.length(); i++) { resultSet.add(new Character(string.charAt(i))); } // Return result return ...
util.HashSet; import java.util.List; import java.util.Set; public class ListToSetMain { public static void main(String args[]) { List<String> listofCountries=new ArrayList<>(); listofCountries.add("India"); listofCountries.add("China"); listofCountries.add("Bhutan"); listofCountries....
import java.util.HashSet; class Main { // Program to convert `Set<String>` to a string array in Java public static void main(String[] args) { Set<String> set = new HashSet<>(Arrays.asList("C++", "Java")); // allocate memory for string array String[] array = new String[set....
Here, we will try to feed duplicate elements to the set in Java. importscala.collection.JavaConversions._objectMyClass{defmain(args:Array[String]):Unit={valjavaSetShorts=newjava.util.HashSet[Short]()javaSetShorts.add(65)javaSetShorts.add(541)javaSetShorts.add(-31234)javaSetShorts.add(0)jav...
Example to Convert Java Set to String importscala.jdk.CollectionConverters._objectmyObject{defmain(args:Array[String]):Unit={valjavaSet=newjava.util.HashSet[Int]()javaSet.add(4535)javaSet.add(2003)javaSet.add(111)valscalaString=javaSet.toString println("The string conversion of java set is ...
You can convert JSON String to Java object in just 2 lines by using Gson as shown below : Gson g = new Gson(); Player p = g.fromJson(jsonString, Player.class) You can also convert a Java object to JSON by using the toJson() method as shown below String str = g.toJson(p); ...
HashSet, TreeSet, LinkedHashSet, TreeMap, HashMap, and ConcurrentHashMap in Java. These are easy-to-follow examples and suitable for both beginners and experienced Java programmers. In Java 8, Stream is one of the most important classes as it allows a lot of useful functional operations lik...
import java.util.*; public class SetToArrayExample { public static void main(String[] args) { // Creating a HashSet of Strings Set<String> set = new HashSet<>(); set.add("apple"); set.add("banana"); set.add("cherry"); // Converting the set to an array of ...
import java.util.Arrays; import java.util.List; import java.util.Set; public class Main { public static void main(String[] args) { String[] array = {"a", "b", "c"}; List<String> list = Arrays.asList(array); Set<String> set = new HashSet<>(list); System.out.println(set);...
Problem description: We have given a Set that contains String elements. Our task is to convert this set of string to a comma separated string in Java. For example: Input: Set = ["Apple", "Orange", "Mango"] Output: "Apple, Orange, Mango" Input: Set = ["J"