Question

How to convert ArrayList<String> to String array (String[]) in Java

Answer 1

import java.util.ArrayList;
import java.util.Arrays;

public class MyClass {
    public static void main(String args[]) {
        ArrayList<String> al = new ArrayList<String>();
   
        al.add("java");
        al.add("c");
        al.add("php");
        al.add("python");
        al.add("c++");
          
        String[] arr = al.toArray(new String[0]);
   
        Arrays.stream(arr).forEach(e->System.out.print(e + " ")); 
    }
}
   
   
   
/*
run:
   
java c php python c++ 
   
*/

 

70+ SQL courses for beginners and professionals

Answer 2

import java.util.ArrayList;

public class MyClass {
    public static void main(String args[]) {
        ArrayList<String> al = new ArrayList<String>();
    
        al.add("java");
        al.add("c");
        al.add("php");
        al.add("python");
        al.add("c++");
           
        String[] arr = al.toArray(new String[al.size()]);  
    
        for(String s : arr) {  
            System.out.println(s);  
        }  
    }
}
    
    
    
    
/*
run:
    
java
c
php
python
c++
    
*/

 

70+ SQL courses for beginners and professionals