size()]; // Convert the ArrayList to an array and store it in my_array. list.toArray(my_array); // Iterate through the elements of the string array and print each element. for (String string : my_array) { System.out.println(string); } } } Copy...
使用toArray()方法进行转换 (Convert Using toArray() Method) ArrayList class provides a method toArray() which directly converts an ArrayList to Array. It can be done in following way. ArrayList类提供了toArray()方法,该方法将ArrayList直接转换为Array。 可以通过以下方式完成。 package com; import ...
// Java program to convert a LinkedList // collection to an array import java.util.*; public class Main { public static void main(String[] args) { LinkedList < Integer > list = new LinkedList < Integer > (); list.add(1); list.add(2); list.add(3); list.add(4); list.add(5)...
Example 2: Convert Map to List using stream import java.util.*; import java.util.stream.Collectors; public class MapList { public static void main(String[] args) { Map<Integer, String> map = new HashMap<>(); map.put(1, "a"); map.put(2, "b"); map.put(3, "c"); map.put(...
In Java, it is common to work with arrays and lists, and sometimes we need to convert an array into a list for easier manipulation and flexibility. An array can be converted to a List easily using multiple ways. Why Convert an Array to a List? Converting an array to a list allows us...
import java.util.Arrays; import java.util.List; import java.util.stream.Collectors; public class Main { public static void main(String[] args) { String[] stringArray = {"apple", "banana", "cherry"}; List<String> stringList = Arrays.stream(stringArray).collect(Collectors.toList()...
Convert a string to achararray: // Create a stringStringmyStr="Hello";// Convert the string to a char arraychar[]myArray=myStr.toCharArray();// Print the first element of the arraySystem.out.println(myArray[0]); Try it Yourself » ...
// Java program to convert a Stack collection // into Object array import java.io.*; import java.util.*; public class Main { public static void main(String[] args) { Stack stack = new Stack(); stack.push(10); stack.push(20); stack.push(30); stack.push(40); Object[] arr = ...
1. ConvertMaptoArray For demo purposes, let us create aMapwithStringkeys andIntegervalues. Map<String,Integer>map=Map.of("A",1,"B",2,"C",3); TheMap.values()returns a collection view of the values contained in this map.UseCollection.toArray()to get the array from collection elements....
Convert an array to a list using Arrays.asList() For string or object (non-primitive) arrays, you can use the Arrays.asList() method to easily convert an array to a list. Here is an example of a string array to list conversion: String[] names = {"Atta", "John", "Emma", "Tom...