Question

How to convert list to an int array in Java

Answer 1

import java.util.List;
import java.util.Arrays; 

public class MyClass 
{
    public static void main(String[] args) {

        List<Integer> list = Arrays.asList(1, 2, 3, 4, 5, 6);
 
        int[] arr = list.stream()
                            .mapToInt(Integer::intValue)
                            .toArray();
        
        System.out.println(Arrays.toString(arr));
    }
}
 
 
 
 
  
/*
run:
  
[1, 2, 3, 4, 5, 6]
  
*/

 

70+ SQL courses for beginners and professionals