Question

How to create a list from array of integers in Java

Answer 1

import java.util.*; 

public class MyClass {
    public static void main(String args[]) {
        Integer arr[] = new Integer[] {2, 4, 6, 8, 1}; 
  
        List<Integer> list = Arrays.asList(arr); 
  
        System.out.println(list);
    }
}


/*
run:

[2, 4, 6, 8, 1]

*/

 

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Answer 2

import java.util.*; 
import java.util.stream.Collectors;

public class MyClass {
    public static void main(String args[]) {
        int[] arr = {2, 4, 6, 8, 1};

		List<Integer> list = Arrays.stream(arr)	
								   .boxed() 		
								   .collect(Collectors.toList());

        System.out.println(list);
    }
}


/*
run:

[2, 4, 6, 8, 1]

*/

 

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