// 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 ...
The following code shows how to convert a set to an array. Example /*fromwww.java2s.com*/importjava.util.Arrays;importjava.util.Iterator;importjava.util.Set;importjava.util.TreeSet;publicclassMain {publicstaticvoidmain(String[] argv) { Set<String> set =newTreeSet<String>(); set.add("b...
TheMap.keySet()returns aSetview of all the keys in theMap. Set<String>keySet=map.keySet(); 4. Conclusion This tutorial taught us how to convert Java Map keys and values into an Array, List or Set with simple examples. We learned to use theArrayListandHashSetconstructors as well as Str...
Example 1: Convert Byte Array to Hex value fun main(args: Array<String>) { val bytes = byteArrayOf(10, 2, 15, 11) for (b in bytes) { val st = String.format("%02X", b) print(st) } } When you run the program, the output will be: 0A020F0B In the above program, we have...
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); ...
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);...
import scala.jdk.CollectionConverters._ object myObject { def main(args: Array[String]): Unit = { val javaSet = new java.util.HashSet[Int]() javaSet.add(4535) javaSet.add(2003) javaSet.add(111) val scalaString = javaSet.toString println("The string conversion of java set is " + ...
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 ...
Fast file hash? Faster Deep Cloning Faster way to get folder size? Faster way to Read XML in C#.Net Fastest method to convert bitmap object to byte array Fastest way to do string comparisons? Hashset.Contains? Fastest way to iterate through an IEnumerable<T> Fastest way to read a huge ...
Fast file hash? Faster Deep Cloning Faster way to get folder size? Faster way to Read XML in C#.Net Fastest method to convert bitmap object to byte array Fastest way to do string comparisons? Hashset.Contains? Fastest way to iterate through an IEnumerable<T> Fastest way to read a huge ...