// Java program to convert a HashSet // into an array import java.util.*; public class Main { public static void main(String[] args) { HashSet < Integer > nums = new HashSet(); nums.add(1); nums.add(2); nums.add(3); nums.add(4); nums.add(5); nums.add(6); Object arr...
import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Set; public class helloWorld { public static void main(String[] args) { Map map = new HashMap(); Map mapcopy = new HashMap(); map.put(1,2);//插入映射 map.put(2, 4); map.put(9, 10); ...
("c"); set.add("a"); Iterator it = set.iterator();while(it.hasNext()) { Object element = it.next(); System.out.println(element); }// Create an array containing the elements in a setString[] array = (String[]) set.toArray(newString[set.size()]); Arrays.toString(array); }...
Convert a Set to a SortedSet To convert a set into sortedSet, there are multiple methods, objectMyClass{defmain(args:Array[String]):Unit={valset=Set(2,56,577,12,46,9,90,19);println("The set is : "+set)valsortedSet=collection.immutable.SortedSet[Int]()++set println("The sorted se...
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fun <T> convertToSet(array: Array<T>): Set<T> { val set: MutableSet<T> = HashSet() for (i in array) { set.add(i) } return set } fun main() { val array = arrayOf("A", "B", "C", "D", "E") val set = convertToSet(array) println(set) // [A, B, C, D, E...
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);...
Convert an Array to a Set in Java Convert Set to List in Java Convert HashSet to TreeSet in Java Rate this post Average rating4.5/5. Vote count:8 Thanks for reading. To share your code in the comments, please use ouronline compilerthat supports C, C++, Java, Python, JavaScript, C#,...
Learn to convert Map keys and values to the array, List or Set using the ArrayList and HashSet constructors as well as Stream APIs.
final Set<String> groups = new HashSet<>(Arrays.asList(account.getGroups())); groups.add(group.getName()); return groups.toArray(new String[groups.size()]); return groups.toArray(new String[0]); } else { return account.getGroups(); } @@ -148,7 +148,7 @@ public Session getSessi...